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UP Universal Plugin security vulnerabilities

mySites.guru tracks 2 vulnerabilities in up. Every connected Joomla site is checked against them on each audit, and flagged if it runs an affected version.

Check whether your sites are affected

What we check for

CriticalCVE-2026-97160CVE-2026-97161CVE-2026-97162CVE-2026-971632026-09-26

UP Universal Plugin (plg_content_up) 5.0.0 to 6.0.29 - Unauthenticated Remote Code Installation, File Read, SQL Injection and PHP Injection (CVE-2026-97160, CVE-2026-97161, CVE-2026-97162, CVE-2026-97163)

UP (the Universal Plugin for Joomla, plg_content_up) versions 5.0.0 to 6.0.29 have several flaws found and reported by mySites.guru. Unauthenticated: a request to Joomla's AJAX endpoint could trigger installation of action code from GitHub with TLS checks disabled (CVE-2026-97163, CVSS 4.0 10.0), read arbitrary files including configuration.php and create files outside the intended folder (CVE-2026-97161, 9.2), plus SQL injection vectors (CVE-2026-97162, 8.3). The PHP and SQL actions reserved to administrators could be reached by article authors through action-name variants (PHP command injection, CVE-2026-97160, 9.4). Fixed in UP 6.1.0 (Joomla 5.2 to 6.x) and UP 5.2.1 (Joomla 3.10 to 5.1), released 26 Sep 2026. Update to the fixed release for your Joomla version; if you cannot, disable the plugin. Check the plugin folder for action directories or PHP files you did not add.

Affected versions: ≥ 5.0.0 and < 5.2.1

Full advisory: our disclosure post

CriticalCVE-2026-97160CVE-2026-97161CVE-2026-97162CVE-2026-971632026-09-26

UP Universal Plugin (plg_content_up) 5.0.0 to 6.0.29 - Unauthenticated Remote Code Installation, File Read, SQL Injection and PHP Injection (CVE-2026-97160, CVE-2026-97161, CVE-2026-97162, CVE-2026-97163)

UP (the Universal Plugin for Joomla, plg_content_up) versions 5.0.0 to 6.0.29 have several flaws found and reported by mySites.guru. Unauthenticated: a request to Joomla's AJAX endpoint could trigger installation of action code from GitHub with TLS checks disabled (CVE-2026-97163, CVSS 4.0 10.0), read arbitrary files including configuration.php and create files outside the intended folder (CVE-2026-97161, 9.2), plus SQL injection vectors (CVE-2026-97162, 8.3). The PHP and SQL actions reserved to administrators could be reached by article authors through action-name variants (PHP command injection, CVE-2026-97160, 9.4). Fixed in UP 6.1.0 (Joomla 5.2 to 6.x) and UP 5.2.1 (Joomla 3.10 to 5.1), released 26 Sep 2026. Update to the fixed release for your Joomla version; if you cannot, disable the plugin. Check the plugin folder for action directories or PHP files you did not add.

Affected versions: ≥ 6.0.0 and < 6.1.0

Full advisory: our disclosure post

Running UP Universal Plugin on a site you manage?

A free audit tells you which of your Joomla and WordPress sites run an affected version, which are out of date, and which have not been backed up. No card required. If a site is already compromised, fix.mysites.guru is a single fixed fee per incident, usually resolved the same day.

CVE identifiers: CVE-2026-97160, CVE-2026-97161, CVE-2026-97162, CVE-2026-97163. Rules current as of 26 September 2026.