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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-18363 Detail

Description

A logic vulnerability in the password reset token validation routine implemented by osTicket in versions prior to v1.17.8 and v1.18.4. During the password reset process, the application retrieves the timestamp associated with the provided token and checks whether the configured validity period has expired. Consequently, the expiry check is only performed if the timestamp lookup fails, allowing tokens with an existing timestamp to bypass the intended expiry validation. Therefore, an attacker able to obtain a valid password reset token could reuse it to perform an unauthorised password reset and compromise the affected account.


Metrics

 
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:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  Spanish National Cybersecurity Institute, S.A. (INCIBE)
CVSS-B 9.1 CRITICAL
Vector:  CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://www.incibe.es/en/incibe-cert/notices/aviso/weak-password-recovery-mechanism-osticket-enhancesoft-llc Spanish National Cybersecurity Institute, S.A. (INCIBE)

Weakness Enumeration

CWE-ID CWE Name Source
CWE-640 Weak Password Recovery Mechanism for Forgotten Password Spanish National Cybersecurity Institute, S.A. (INCIBE)  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-18363
NVD Published Date:
07/30/2026
NVD Last Modified:
07/30/2026
Source:
Spanish National Cybersecurity Institute, S.A. (INCIBE)