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GHSA-7gm6-w7mx-58crhigh8.1

phpBB has Password Reset Link Poisoning via Host Header injection

Impact

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.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

phpbb/phpbb Packagist
Affected rangeRecorded fix
From 3.0.0 before 3.3.16Ecosystem versions3.3.16
From 4.0.0-a1 before 4.0.0-a2Ecosystem versions4.0.0-a2

Version evidence: OSV · GHSA-7gm6-w7mx-58cr

View original version evidence (110 explicit versions)

Original source 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.

References