{"data":{"id":"CVE-2026-78077","cve_id":"CVE-2026-78077","title":"Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container & Embed Inputs in Helix Ultimate < 2.2.10","summary":"Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container & Embed Inputs in Helix Ultimate < 2.2.10","severity":"HIGH","cvss":{"score":8.6,"version":"4.0","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","source":"nvd"},"published_at":"2026-08-31T14:17:24.113000Z","modified_at":"2026-08-31T19:33:11.197000Z","withdrawn_at":null,"is_joomla":true,"is_joomla_core":false,"relevance":"certain","product":"Extension Joomla — joomshaper.com","extension":{"type":null,"name":null},"sources":["nvd"],"source_count":1,"url":"https://cve.oyer.fr/cve/CVE-2026-78077","description":"Joomla Extension - joomshaper.com -  Stored Cross-Site Scripting (XSS) in MegaMenu Layout Container & Embed Inputs in Helix Ultimate < 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.","cwe":["CWE-79"],"affected":[{"package":null,"product":"Helix Ultimate extension for Joomla","vendor":"joomshaper.com","ecosystem":null,"cpe":null,"version_start":"1.0","version_end":"2.2.9","version_end_inclusive":true,"fixed_version":null,"type":null,"source":"nvd"}],"references":[{"url":"https://www.joomshaper.com/joomla-templates/helixultimate","title":null,"source":"nvd"}],"source_records":[{"source":"nvd","external_id":"CVE-2026-78077","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78077","severity":"HIGH","cvss_score":8.6,"cvss_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","cvss_version":"4.0","first_seen_at":"2026-09-26T09:34:34.382952Z","last_seen_at":"2026-09-26T09:34:34.382952Z"}],"history":[{"at":"2026-09-26T09:34:34.382952Z","event":"created","source":"nvd","detail":"Détectée via nvd"}]}}