{"id":"CVE-2026-97165","title":"Joomla Extension - svenbluege.de - Reflected XSS and open redirect in Event Gallery extension < 6.5.0 - The “return” parameter is base64-decoded and written to the “Back” link without being validated.","summary":"Joomla Extension - svenbluege.de - Reflected XSS and open redirect in Event Gallery extension < 6.5.0 - The “return” parameter is base64-decoded and written to the “Back” link without being validated.","severity":"medium","cvss":5.3,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","cwe":["CWE-79","CWE-601"],"vendor":"svenbluege.de","product":"Event Gallery for Joomla","affected":["event_gallery_for_joomla 1.0.0-6.0.0"],"published":"2026-09-27","updated":"2026-09-27","sourceUpdated":"2026-09-27T12:17:12.127","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97165","references":[{"url":"https://www.svenbluege.de/","label":"security@joomla.org"}],"tags":["nvd","cve.org"],"cvssSource":"cna","ingestedAt":"2026-09-27T11:51:26.663Z","slug":"CVE-2026-97165","body":"## Overview\n\nJoomla Extension - svenbluege.de - Reflected XSS and open redirect in Event Gallery extension < 6.5.0 - The “return” parameter is base64-decoded and written to the “Back” link without being validated.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}