{"id":"CVE-2026-78077","title":"Joomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container & Embed Inputs in Helix Ultimate < 2.2.11","summary":"Joomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container & Embed Inputs in Helix Ultimate < 2.2.11 - Unsanitized column and item configuration values stored within the MegaMenu layout JSON were …","severity":"high","cvss":8.6,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"joomshaper.com","product":"Helix Ultimate extension for Joomla","affected":["helix_ultimate_extension_for_joomla 1.0-2.2.10"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-31T14:25:18.487560Z"},"published":"2026-08-31","updated":"2026-11-02","sourceUpdated":"2026-11-02T13:23:09.137Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-78077","references":[{"url":"https://www.joomshaper.com/joomla-templates/helixultimate"}],"tags":["cve.org"],"epss":0.00418,"epssPercentile":0.36322,"ingestedAt":"2026-11-05T19:30:42.642Z","slug":"CVE-2026-78077","body":"## Overview\n\nJoomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container & Embed Inputs in Helix Ultimate < 2.2.11 - Unsanitized column and item configuration values stored within the MegaMenu layout JSON were rendered without complete contextual escaping, allowing injection of malicious HTML/JS. Stricter sanitization and tag allowlists via `InputFilter` and `htmlspecialchars` were implemented.\n\n## Affected\n\n- `helix_ultimate_extension_for_joomla 1.0-2.2.10`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":47.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}