CVE-2016-10033
Detail
Deferred
This CVE record is not being prioritized for NVD enrichment efforts due to resource or other concerns.
Description
The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code via a \" (backslash double quote) in a crafted Sender property.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
Vector:
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
References to Advisories, Solutions, and Tools
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URL
Source(s)
Tag(s)
http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html
CVE, MITRE
Exploit
Third Party Advisory
VDB Entry
http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html
CVE, MITRE
Exploit
Third Party Advisory
VDB Entry
http://seclists.org/fulldisclosure/2016/Dec/78
CVE, MITRE
Mailing List
Patch
Third Party Advisory
http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection
CVE, MITRE
Exploit
Third Party Advisory
http://www.securityfocus.com/archive/1/539963/100/0/threaded
CVE, MITRE
Broken Link
Third Party Advisory
VDB Entry
http://www.securityfocus.com/bid/95108
CVE, MITRE
Broken Link
Exploit
Third Party Advisory
VDB Entry
http://www.securitytracker.com/id/1037533
CVE, MITRE
Broken Link
Third Party Advisory
VDB Entry
https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html
CVE, MITRE
Third Party Advisory
https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18
CVE, MITRE
Patch
Vendor Advisory
https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities
CVE, MITRE
Patch
Vendor Advisory
https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html
CVE, MITRE
Exploit
Patch
Third Party Advisory
https://www.drupal.org/psa-2016-004
CVE, MITRE
Third Party Advisory
https://www.exploit-db.com/exploits/40968/
CVE, MITRE
Exploit
Patch
Third Party Advisory
VDB Entry
https://www.exploit-db.com/exploits/40969/
CVE, MITRE
Exploit
Third Party Advisory
VDB Entry
https://www.exploit-db.com/exploits/40970/
CVE, MITRE
Exploit
Patch
Third Party Advisory
VDB Entry
https://www.exploit-db.com/exploits/40974/
CVE, MITRE
Exploit
Third Party Advisory
VDB Entry
https://www.exploit-db.com/exploits/40986/
CVE, MITRE
Exploit
Third Party Advisory
VDB Entry
https://www.exploit-db.com/exploits/41962/
CVE, MITRE
Exploit
Third Party Advisory
VDB Entry
https://www.exploit-db.com/exploits/41996/
CVE, MITRE
Exploit
Third Party Advisory
VDB Entry
https://www.exploit-db.com/exploits/42024/
CVE, MITRE
Exploit
Third Party Advisory
VDB Entry
https://www.exploit-db.com/exploits/42221/
CVE, MITRE
Exploit
Third Party Advisory
VDB Entry
This CVE is in CISA's Known Exploited Vulnerabilities Catalog
Reference
CISA's BOD 22-01 and Known
Exploited Vulnerabilities Catalog for further guidance and requirements.
Vulnerability Name
Date Added
Due Date
Required Action
PHPMailer Command Injection Vulnerability
07/07/2025
07/28/2025
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-88
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
NIST  
CISA-ADP  
Change History
16 change records found show changes
CVE CISA KEV Update by Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government 7/07/2025 9:00:02 PM
Action
Type
Old Value
New Value
Added
Date Added
2025-07-07
Added
Due Date
2025-07-28
Added
Required Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Added
Vulnerability Name
PHPMailer Command Injection Vulnerability
CVE Modified by CISA-ADP 7/07/2025 3:15:22 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added
CWE
CWE-88
CVE Modified by CVE 11/20/2024 9:43:07 PM
Action
Type
Old Value
New Value
Added
Reference
http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html
Added
Reference
http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html
Added
Reference
http://seclists.org/fulldisclosure/2016/Dec/78
Added
Reference
http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection
Added
Reference
http://www.securityfocus.com/archive/1/539963/100/0/threaded
Added
Reference
http://www.securityfocus.com/bid/95108
Added
Reference
http://www.securitytracker.com/id/1037533
Added
Reference
https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html
Added
Reference
https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18
Added
Reference
https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities
Added
Reference
https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html
Added
Reference
https://www.drupal.org/psa-2016-004
Added
Reference
https://www.exploit-db.com/exploits/40968/
Added
Reference
https://www.exploit-db.com/exploits/40969/
Added
Reference
https://www.exploit-db.com/exploits/40970/
Added
Reference
https://www.exploit-db.com/exploits/40974/
Added
Reference
https://www.exploit-db.com/exploits/40986/
Added
Reference
https://www.exploit-db.com/exploits/41962/
Added
Reference
https://www.exploit-db.com/exploits/41996/
Added
Reference
https://www.exploit-db.com/exploits/42024/
Added
Reference
https://www.exploit-db.com/exploits/42221/
CVE Modified by MITRE 5/13/2024 11:49:08 PM
Action
Type
Old Value
New Value
Reanalysis by NIST 2/14/2024 9:56:08 AM
Action
Type
Old Value
New Value
Added
CWE
NIST CWE-88
Removed
CWE
NIST CWE-77
Changed
Reference Type
http://www.securityfocus.com/archive/1/539963/100/0/threaded Third Party Advisory, VDB Entry
http://www.securityfocus.com/archive/1/539963/100/0/threaded Broken Link, Third Party Advisory, VDB Entry
Changed
Reference Type
http://www.securityfocus.com/bid/95108 Exploit, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/95108 Broken Link, Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
http://www.securitytracker.com/id/1037533 Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037533 Broken Link, Third Party Advisory, VDB Entry
Modified Analysis by NIST 9/30/2021 12:30:42 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Removed
CVSS V3
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Changed
CPE Configuration
OR
*cpe:2.3:a:phpmailer_project:phpmailer:*:*:*:*:*:*:*:* versions up to (including) 5.2.17
OR
*cpe:2.3:a:phpmailer_project:phpmailer:*:*:*:*:*:*:*:* versions up to (excluding) 5.2.18
Added
CPE Configuration
OR
*cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:* versions from (including) 1.5.0 up to (including) 3.6.5
Added
CPE Configuration
OR
*cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions up to (including) 4.7
Changed
Reference Type
http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html Exploit, Third Party Advisory
http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html Exploit, Third Party Advisory
http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
http://seclists.org/fulldisclosure/2016/Dec/78 Mailing List, Patch
http://seclists.org/fulldisclosure/2016/Dec/78 Mailing List, Patch, Third Party Advisory
Changed
Reference Type
http://www.securityfocus.com/archive/1/539963/100/0/threaded No Types Assigned
http://www.securityfocus.com/archive/1/539963/100/0/threaded Third Party Advisory, VDB Entry
Changed
Reference Type
http://www.securitytracker.com/id/1037533 No Types Assigned
http://www.securitytracker.com/id/1037533 Third Party Advisory, VDB Entry
Changed
Reference Type
https://www.exploit-db.com/exploits/40968/ Exploit, Patch, Third Party Advisory
https://www.exploit-db.com/exploits/40968/ Exploit, Patch, Third Party Advisory, VDB Entry
Changed
Reference Type
https://www.exploit-db.com/exploits/40969/ No Types Assigned
https://www.exploit-db.com/exploits/40969/ Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
https://www.exploit-db.com/exploits/40970/ Exploit, Patch, Third Party Advisory
https://www.exploit-db.com/exploits/40970/ Exploit, Patch, Third Party Advisory, VDB Entry
Changed
Reference Type
https://www.exploit-db.com/exploits/40974/ No Types Assigned
https://www.exploit-db.com/exploits/40974/ Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
https://www.exploit-db.com/exploits/40986/ No Types Assigned
https://www.exploit-db.com/exploits/40986/ Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
https://www.exploit-db.com/exploits/41962/ No Types Assigned
https://www.exploit-db.com/exploits/41962/ Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
https://www.exploit-db.com/exploits/41996/ No Types Assigned
https://www.exploit-db.com/exploits/41996/ Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
https://www.exploit-db.com/exploits/42024/ No Types Assigned
https://www.exploit-db.com/exploits/42024/ Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
https://www.exploit-db.com/exploits/42221/ No Types Assigned
https://www.exploit-db.com/exploits/42221/ Exploit, Third Party Advisory, VDB Entry
CVE Modified by MITRE 10/09/2018 3:58:58 PM
Action
Type
Old Value
New Value
Added
Reference
http://www.securityfocus.com/archive/1/539963/100/0/threaded [No Types Assigned]
Removed
Reference
http://www.securityfocus.com/archive/1/archive/1/539963/100/0/threaded [Exploit, Patch, Third Party Advisory]
CVE Modified by MITRE 9/02/2017 9:29:03 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.exploit-db.com/exploits/40969/ [No Types Assigned]
Added
Reference
https://www.exploit-db.com/exploits/40974/ [No Types Assigned]
Added
Reference
https://www.exploit-db.com/exploits/40986/ [No Types Assigned]
CVE Modified by MITRE 8/15/2017 9:29:04 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.exploit-db.com/exploits/41962/ [No Types Assigned]
Added
Reference
https://www.exploit-db.com/exploits/41996/ [No Types Assigned]
CVE Modified by MITRE 8/12/2017 9:29:04 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.exploit-db.com/exploits/42024/ [No Types Assigned]
CVE Modified by MITRE 8/11/2017 9:29:00 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.exploit-db.com/exploits/42221/ [No Types Assigned]
CVE Modified by MITRE 7/26/2017 9:29:00 PM
Action
Type
Old Value
New Value
Added
Reference
http://www.securitytracker.com/id/1037533 [No Types Assigned]
CVE Modified by MITRE 1/25/2017 9:59:01 PM
Action
Type
Old Value
New Value
Changed
Description
The mailSend function in the isMail transport in PHPMailer before 5.2.18, when the Sender property is not set, might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code via a \" (backslash double quote) in a crafted From address.
The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code via a \" (backslash double quote) in a crafted Sender property.
Modified Analysis by NIST 1/23/2017 1:05:18 PM
Action
Type
Old Value
New Value
Changed
CVSS V3
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Changed
CVSS V2
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Changed
Reference Type
http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html No Types Assigned
http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html Third Party Advisory, Exploit
Changed
Reference Type
http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection No Types Assigned
http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection Third Party Advisory, Exploit
CVE Modified by MITRE 1/06/2017 10:00:36 PM
Action
Type
Old Value
New Value
Added
Reference
http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html [No Types Assigned]
Added
Reference
http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection [No Types Assigned]
Initial Analysis by NIST 1/03/2017 1:10:53 PM
Action
Type
Old Value
New Value
Added
CVSS V3
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Added
CVSS V2
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Added
CWE
CWE-77
Added
CPE Configuration
OR
*cpe:2.3:a:phpmailer_project:phpmailer:5.2.17:*:*:*:*:*:*:* (and previous)
Changed
Reference Type
http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html No Types Assigned
http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html Third Party Advisory, Exploit
Changed
Reference Type
http://seclists.org/fulldisclosure/2016/Dec/78 No Types Assigned
http://seclists.org/fulldisclosure/2016/Dec/78 Mailing List, Patch
Changed
Reference Type
http://www.securityfocus.com/archive/1/archive/1/539963/100/0/threaded No Types Assigned
http://www.securityfocus.com/archive/1/archive/1/539963/100/0/threaded Third Party Advisory, Exploit, Patch
Changed
Reference Type
http://www.securityfocus.com/bid/95108 No Types Assigned
http://www.securityfocus.com/bid/95108 Third Party Advisory, VDB Entry, Exploit
Changed
Reference Type
https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html No Types Assigned
https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html Third Party Advisory
Changed
Reference Type
https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18 No Types Assigned
https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18 Vendor Advisory, Patch
Changed
Reference Type
https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities No Types Assigned
https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities Vendor Advisory, Patch
Changed
Reference Type
https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html No Types Assigned
https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html Third Party Advisory, Exploit, Patch
Changed
Reference Type
https://www.drupal.org/psa-2016-004 No Types Assigned
https://www.drupal.org/psa-2016-004 Third Party Advisory
Changed
Reference Type
https://www.exploit-db.com/exploits/40968/ No Types Assigned
https://www.exploit-db.com/exploits/40968/ Third Party Advisory, Exploit, Patch
Changed
Reference Type
https://www.exploit-db.com/exploits/40970/ No Types Assigned
https://www.exploit-db.com/exploits/40970/ Third Party Advisory, Exploit, Patch
Quick Info
CVE Dictionary Entry: CVE-2016-10033 NVD
Published Date: 12/30/2016 NVD
Last Modified: 07/07/2025
Source: MITRE