{"answers":{"affected":"2 open source packages ship an affected version, including wwbn/avideo. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-27568 in the wild and no public exploit code.","fix":"Upgrade wwbn/avideo to 21.0 or later.","what":"CVE-2026-27568 is a medium-severity cross-site scripting vulnerability in Wwbn Avideo, published on 24 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-27568 and fix it if it is affected.\n\nWhat it is: CVE-2026-27568 is a medium-severity cross-site scripting vulnerability in Wwbn Avideo, published on 24 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-27568 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- wwbn/avideo (Packagist): affected all versions; fixed in 21.0\n- wwbn/avideo (Packagist): affected all versions; fixed in 21.0\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-2026-27568/ (Markdown: https://insights.sbomify.com/CVE-2026-27568/index.md)","id":"CVE-2026-27568","markdown":"https://insights.sbomify.com/CVE-2026-27568/index.md","name":"CVE-2026-27568","record":{"aliases":["GHSA-rcqw-6466-3mv7"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Video platform","requires_auth":"low_privilege","summary":"Authenticated users can inject persistent JavaScript via Markdown comments, leading to session hijacking and admin takeover.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"avideo","vendor":"wwbn"}],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"WWBN AVideo is an open source video platform. Prior to version 21.0, AVideo allows Markdown in video comments and uses Parsedown (v1.7.4) without Safe Mode enabled. Markdown links are not sufficiently sanitized, allowing `javascript:` URIs to be rendered as clickable links. An authenticated low-privilege attacker can post a malicious comment that injects persistent JavaScript. When another user clicks the link, the attacker can perform actions such as session hijacking, privilege escalation (including admin takeover), and data exfiltration. Version 21.0 contains a fix. As a workaround, validate and block unsafe URI schemes (e.g., `javascript:`) before rendering Markdown, and enable Parsedown Safe Mode.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"AVideo has Stored Cross-Site Scripting via Markdown Comment Injection","id":"CVE-2026-27568","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"wwbn:avideo","products":["wwbn:avideo"],"type":"xss","year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"Discourse Vulnerable to Stored XSS via Shared AI Conversation Onebox","id":"CVE-2026-27570"},"packages":[{"ecosystem":"Packagist","fixed":["21.0"],"introduced":["0"],"last_affected":[],"package":"wwbn/avideo","purl":null,"source":"GHSA-rcqw-6466-3mv7"},{"ecosystem":"Packagist","fixed":["21.0"],"introduced":["0"],"last_affected":[],"package":"wwbn/avideo","purl":"pkg:composer/wwbn/avideo","source":"GHSA-rcqw-6466-3mv7"}],"prev":{"headline":"Payload has Server-Side Request Forgery (SSRF) in External File URL Uploads","id":"CVE-2026-27567"},"products":["AVideo"],"published":"2026-02-24","related":[{"cvss_score":10,"headline":"WWBN AVideo YPTSocket WebSocket Broadcast Relay Leads to Unauthenticated Cross-User JavaScript Execution via Client-Side eval() Sinks","id":"CVE-2026-40911","kev_date_added":null,"published":"2026-04-21"},{"cvss_score":10,"headline":"AVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, Database Dump, and Command Injection","id":"CVE-2026-33478","kev_date_added":null,"published":"2026-03-23"},{"cvss_score":9.9,"headline":"Command injection in AVideo","id":"CVE-2022-30534","kev_date_added":null,"published":"2022-08-22"},{"cvss_score":9.9,"headline":"Path traversal in AVideo","id":"CVE-2022-30547","kev_date_added":null,"published":"2022-08-22"},{"cvss_score":9.9,"headline":"Command injection in AVideo","id":"CVE-2022-32572","kev_date_added":null,"published":"2022-08-22"},{"cvss_score":9.8,"headline":"AVideo has an Unauthenticated SQL Injection via `doNotShowCats` Parameter (Backslash Escape Bypass)","id":"CVE-2026-33352","kev_date_added":null,"published":"2026-03-23"},{"cvss_score":9.8,"headline":"WWBN AVideo: Unauthenticated SQL Injection via JSON Request Bypass in objects/videos.json.php","id":"CVE-2026-28501","kev_date_added":null,"published":"2026-03-06"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-02-27","vendors":["WWBN"]},"summary":"Authenticated users can inject persistent JavaScript via Markdown comments, leading to session hijacking and admin takeover.","url":"https://insights.sbomify.com/CVE-2026-27568/"}