CVE-2026-44642
highPiwigo is a full featured open source photo gallery application for the web.
Piwigo is a full featured open source photo gallery application for the web. Prior to 16.4.0, check_upgrade_access_rights() in admin/include/functions_upgrade.php conditionally escapes the submitted username only when the removed get_magic_quotes_gpc function exists, so PHP 8 and later concatenate an unauthenticated username directly into the upgrade authentication SQL query. When database upgrades are pending, a crafted query result can satisfy the status and password checks, set PHPWG_IN_UPGRADE, and authorize upgrade execution without valid administrator credentials. This can cause unauthorized database integrity changes and service disruption. This vulnerability is fixed in 16.4.0.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/Piwigo/Piwigo/commit/1ff9d04534feb5f8f3cc2d3613c0fe8b51a1c0ba security-advisories@github.com
- https://github.com/Piwigo/Piwigo/commit/2cfa7a3d194c8b95edde43038d8f5be5a359e785 security-advisories@github.com
- https://github.com/Piwigo/Piwigo/releases/tag/16.4.0 security-advisories@github.com
- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-6wj3-7fhw-gfpm security-advisories@github.com
- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-6wj3-7fhw-gfpm 134c704f-9b21-4f2e-91b3-4a467353bcc0