{"answers":{"affected":"2 open source packages ship an affected version, including wwbn/avideo.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-43878 exists.","fix":"No fix has been published for CVE-2026-43878 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-43878 is a medium-severity cross-site scripting vulnerability in WWBN AVideo, published on 11 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-43878 and fix it if it is affected.\n\nWhat it is: CVE-2026-43878 is a medium-severity cross-site scripting vulnerability in WWBN AVideo, published on 11 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-43878 exists.\n\nAffected packages and fixed versions:\n- wwbn/avideo (Packagist): affected all versions up to 29.0; no fix listed\n- wwbn/avideo (Packagist): affected all versions up to 29.0; no fix listed\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-2026-43878/ (Markdown: https://insights.sbomify.com/CVE-2026-43878/index.md)","id":"CVE-2026-43878","markdown":"https://insights.sbomify.com/CVE-2026-43878/index.md","name":"CVE-2026-43878","record":{"aliases":["GHSA-mm5f-8q57-4fc4"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Video platform","requires_auth":"none","summary":"Reflected XSS in AVideo allows attackers to execute arbitrary JavaScript in victims' browsers via crafted URLs, requiring no authentication if a public Meet schedule exists.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"WWBN AVideo is an open source video platform. In versions up to and including 29.0, plugin/Meet/iframe.php echoes the attacker-controlled user and pass query parameters unescaped into a JavaScript double-quoted string literal inside a \u003cscript\u003e block. An attacker who sends a victim to a crafted URL can break out of the string and execute arbitrary JavaScript in the victim's browser in the context of the AVideo origin. No authentication is required if a public Meet schedule exists on the target. Commit 3298ced2bcf92e4f3acff6ce9bde14edf42ecb5b contains an updated fix.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Video: Reflected XSS in plugin/Meet/iframe.php via Unescaped user and pass Parameters in JavaScript String Literal","id":"CVE-2026-43878","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"AVideo has Blind SSRF in YPTWallet Donation Webhook via Missing isSSRFSafeURL() Check and CURLOPT_FOLLOWLOCATION Redirect Bypass","id":"CVE-2026-43879"},"packages":[{"ecosystem":"Packagist","fixed":[],"introduced":["0"],"last_affected":["29.0"],"package":"wwbn/avideo","purl":null,"source":"GHSA-mm5f-8q57-4fc4"},{"ecosystem":"Packagist","fixed":[],"introduced":["0"],"last_affected":["29.0"],"package":"wwbn/avideo","purl":"pkg:composer/wwbn/avideo","source":"GHSA-mm5f-8q57-4fc4"}],"prev":{"headline":"AVideo: CSRF in userSavePhoto.php Allows Cross-Origin Overwrite of Authenticated Users' Profile Photos with Arbitrary Content","id":"CVE-2026-43877"},"products":["AVideo"],"published":"2026-05-11","related":[],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-12","vendors":["WWBN"]},"summary":"Reflected XSS in AVideo allows attackers to execute arbitrary JavaScript in victims' browsers via crafted URLs, requiring no authentication if a public Meet schedule exists.","url":"https://insights.sbomify.com/CVE-2026-43878/"}