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CVE-2026-29199 Detail

Description

phpBB before 3.3.16 is vulnerable to Host Header Injection that can lead to password rest link poisoning. When force_server_vars is disabled, the servers hostname may be extracted from the HTTP Host header which is used to generate the password reset link URL. An attacker who can manipulate the Host header (e.g. through misconfigured host setup or missing header validation by the webserver) can cause password reset emails to contain a link pointing to an attacker-controlled domain, potentially leading to account takeover.


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.

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URL Source(s) Tag(s)
https://hackerone.com/reports/3543246 HackerOne

Weakness Enumeration

CWE-ID CWE Name Source
CWE-640 Weak Password Recovery Mechanism for Forgotten Password HackerOne  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-29199
NVD Published Date:
05/04/2026
NVD Last Modified:
05/04/2026
Source:
HackerOne