{"id":"CVE-2026-66917","title":"Joomla Extension - joomgalleryfriends.net - Stored XSS in JoomGallery < 4.4.0 - An authenticated, privileged can store an XSS payload in any image causing JS execution in every visitor's browser.","summary":"Joomla Extension - joomgalleryfriends.net - Stored XSS in JoomGallery < 4.4.0 - An authenticated, privileged can store an XSS payload in any image causing JS execution in every visitor's browser.","severity":"none","cwe":["CWE-79"],"published":"2026-08-22","updated":"2026-08-22","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-66917","references":[{"url":"https://www.joomgalleryfriends.net/","label":"security@joomla.org"}],"tags":["nvd","exploit-available"],"ingestedAt":"2026-08-23T04:42:13.978Z","epss":0.00466,"epssPercentile":0.39573,"exploits":{"github":1,"githubRepos":["https://github.com/toanln-cov/CVE-2026-66917"],"checkedAt":"2026-09-23T07:14:36.818Z"},"exploitAvailable":true,"slug":"CVE-2026-66917","body":"## Overview\n\nJoomla Extension - joomgalleryfriends.net - Stored XSS in JoomGallery < 4.4.0 - An authenticated, privileged can store an XSS payload in any image causing JS execution in every visitor's browser.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":15,"depthScoreParts":{"impact":2.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":5413,"id":"CVE-2026-66917","ts":1788887281399,"field":"exploit_available","old":"false","new":"true"},{"seq":4296,"id":"CVE-2026-66917","ts":1788886395268,"field":"exploit_available","old":"true","new":"false"},{"seq":3045,"id":"CVE-2026-66917","ts":1788883059025,"field":"exploit_available","old":"false","new":"true"},{"seq":2074,"id":"CVE-2026-66917","ts":1788882463746,"field":"exploit_available","old":"true","new":"false"},{"seq":1147,"id":"CVE-2026-66917","ts":1788881900194,"field":"exploit_available","old":"false","new":"true"}]}