{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-103584 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-103584 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-103584 is a low-severity cross-site scripting vulnerability in The Wikimedia Foundation MediaWiki CommonsMetadata extension, published on 30 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-103584 and fix it if it is affected.\n\nWhat it is: CVE-2026-103584 is a low-severity cross-site scripting vulnerability in The Wikimedia Foundation MediaWiki CommonsMetadata extension, published on 30 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-103584 in the wild and no public exploit code.\n\nAffected product: The Wikimedia Foundation MediaWiki CommonsMetadata extension. 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-2026-103584/ (Markdown: https://insights.sbomify.com/CVE-2026-103584/index.md)","id":"CVE-2026-103584","markdown":"https://insights.sbomify.com/CVE-2026-103584/index.md","name":"CVE-2026-103584","record":{"aliases":["GHSA-v276-8895-8m7m"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"MediaWiki CommonsMetadata extension","requires_auth":"high_privilege","summary":"An attacker can inject malicious JavaScript via a license URL in the MediaWiki CommonsMetadata extension, potentially executing code or hijacking user sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"wikimedia-foundation","cpe":[],"cvss":{"score":1.1,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Amber","version":"4.0"},"cwes":[{"id":"CWE-80","name":"Improper Neutralization of Script-Related HTML Tags in a Web Page"}],"description":"Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki CommonsMetadata extension allows Cross-Site Scripting (XSS).\n\nThis issue affects MediaWiki CommonsMetadata extension: 1.46, 1.45, and 1.43.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-10-01","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-10-01T01:06:46Z","kind":"github_poc","ref":"https://github.com/BomboBombone/CVE-2026-103584","stars":0,"title":"Sanitized report and local PoC for CVE-2026-103584"}],"tier":"poc_unverified"},"has_fix":null,"headline":"attacker-controlled javascript license URL via XSS","id":"CVE-2026-103584","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"attacker-controlled javascript license URL via XSS","id":"CVE-2026-103585"},"packages":[],"prev":{"headline":"Windows Kernel Elevation of Privilege Vulnerability","id":"CVE-2026-103578"},"products":["MediaWiki CommonsMetadata extension"],"published":"2026-09-30","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-01","vendors":["The Wikimedia Foundation"]},"summary":"An attacker can inject malicious JavaScript via a license URL in the MediaWiki CommonsMetadata extension, potentially executing code or hijacking user sessions.","url":"https://insights.sbomify.com/CVE-2026-103584/"}