SB2026042601 - Observable Response Discrepancy in Piwigo

Description

This security bulletin contains information about 1 vulnerability.

1) Observable Response Discrepancy (CVE-ID: CVE-2025-62512)

CWE-ID: CWE-204 - Observable Response Discrepancy

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to disclose valid usernames or email addresses.

The vulnerability exists due to observable response discrepancy in the password reset endpoint when handling password reset requests. A remote attacker can send a specially crafted request with a username or email address to disclose valid usernames or email addresses.

The endpoint returns distinct messages for existing and non-existent accounts.

Remediation

Install update from vendor's website.

References

• https://github.com/Piwigo/Piwigo/security/advisories/GHSA-h4wx-7m83-xfxc
• https://github.com/advisories/GHSA-h4wx-7m83-xfxc