{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-78077 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-78077 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-78077 is a high-severity cross-site scripting vulnerability in joomshaper.com Helix Ultimate extension for Joomla, published on 31 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-78077 and fix it if it is affected.\n\nWhat it is: CVE-2026-78077 is a high-severity cross-site scripting vulnerability in joomshaper.com Helix Ultimate extension for Joomla, published on 31 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-78077 in the wild and no public exploit code.\n\nAffected product: joomshaper.com Helix Ultimate extension for Joomla. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-78077/ (Markdown: https://insights.sbomify.com/CVE-2026-78077/index.md)","id":"CVE-2026-78077","markdown":"https://insights.sbomify.com/CVE-2026-78077/index.md","name":"CVE-2026-78077","record":{"aliases":["GHSA-v6p2-jx9w-8967"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Joomla Helix Ultimate","requires_auth":"high_privilege","summary":"Attackers can inject malicious scripts via unsanitized MegaMenu configuration values, leading to stored XSS in the Helix Ultimate Joomla extension.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Joomla","cpe":[],"cvss":{"score":8.6,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Cross-site scripting in Helix Ultimate extension for Joomla","id":"CVE-2026-78077","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Joomla Extension - joomshaper.com - Privileged File Upload Bypass via Content Spoofing in Helix Ultimate \u003c 2.2.10","id":"CVE-2026-78078"},"packages":[],"prev":{"headline":"Missing authorization in Helix Ultimate extension for Joomla","id":"CVE-2026-78076"},"products":["Helix Ultimate extension for Joomla"],"published":"2026-08-31","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-01","vendors":["joomshaper.com"]},"summary":"Attackers can inject malicious scripts via unsanitized MegaMenu configuration values, leading to stored XSS in the Helix Ultimate Joomla extension.","url":"https://insights.sbomify.com/CVE-2026-78077/"}