{"id":"CVE-2026-78077","aliases":["EUVD-2026-68524","GHSA-v6p2-jx9w-8967"],"status":"published","title":"Joomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container \u0026 Embed Inputs in Helix Ultimate \u003c 2.2.11","description":"Joomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container \u0026 Embed Inputs in Helix Ultimate \u003c 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.","severity":{"version":"4.0","score":8.6,"vector":"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00418,"percentile":0.36348,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-08-31T13:53:43Z","modified":"2026-11-02T14:17:38Z","products":[{"vendor":"joomshaper.com","product":"helix ultimate extension for joomla"}],"references":[{"url":"https://www.joomshaper.com/joomla-templates/helixultimate","tags":["product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78077"},{"url":"https://github.com/advisories/GHSA-v6p2-jx9w-8967"}],"sources":{"cve":[{"id":"CVE-2026-78077","title":"Joomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container \u0026 Embed Inputs in Helix Ultimate \u003c 2.2.11","description":"Joomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container \u0026 Embed Inputs in Helix Ultimate \u003c 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.","status":"published","published":"2026-08-31T13:53:43.475Z","modified":"2026-11-02T13:23:09.137Z","cvss":[{"version":"4.0","score":8.6,"vector":"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","level":"high","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T18:00:08.034842Z"}],"euvd":[{"id":"EUVD-2026-68524","description":"Joomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container \u0026 Embed Inputs in Helix Ultimate \u003c 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.","status":"published","published":"2026-08-31T13:53:43Z","modified":"2026-11-02T13:23:09Z","cvss":[{"version":"4.0","score":8.6,"vector":"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","level":"high"}],"updated_at":"2026-11-02T16:58:45.261111Z"}],"ghsa":[{"id":"GHSA-v6p2-jx9w-8967","title":"Joomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout...","description":"Joomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container \u0026 Embed Inputs in Helix Ultimate \u003c 2.2.10 - 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.","status":"published","published":"2026-08-31T15:34:45Z","modified":"2026-08-31T15:34:46Z","cvss":[{"version":"4.0","score":8.6,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:11:11.297642Z"}],"nvd":[{"id":"CVE-2026-78077","description":"Joomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container \u0026 Embed Inputs in Helix Ultimate \u003c 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.","status":"published","published":"2026-08-31T14:17:24.113Z","modified":"2026-11-02T14:17:38.3Z","cvss":[{"version":"4.0","score":8.6,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T20:51:40.517533Z"}]}}