{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-103442 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-103442 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-103442 is a high-severity code injection vulnerability in The Wikimedia Foundation MediaWiki CentralAuth 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-2026-103442 and fix it if it is affected.\n\nWhat it is: CVE-2026-103442 is a high-severity code injection vulnerability in The Wikimedia Foundation MediaWiki CentralAuth 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-2026-103442 in the wild and no public exploit code.\n\nAffected product: The Wikimedia Foundation MediaWiki CentralAuth 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-2026-103442/ (Markdown: https://insights.sbomify.com/CVE-2026-103442/index.md)","id":"CVE-2026-103442","markdown":"https://insights.sbomify.com/CVE-2026-103442/index.md","name":"CVE-2026-103442","record":{"aliases":["GHSA-7c6r-9xcw-h46m"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"MediaWiki CentralAuth extension","requires_auth":"high_privilege","summary":"Attackers can execute arbitrary code via PHP object injection in the MediaWiki CentralAuth extension by manipulating session keys.","user_interaction":"required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"wikimedia-foundation","cpe":[],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:P/S:N/AU:Y/R:U/V:D/RE:M/U:Amber","version":"4.0"},"cwes":[{"id":"CWE-15","name":"External Control of System or Configuration Setting"}],"description":"External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection.\n\nThis issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-09-30","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-09-30T18:34:13Z","kind":"github_poc","ref":"https://github.com/BomboBombone/CVE-2026-103442","stars":0,"title":"Sanitized report summary and local PoC for CVE-2026-103442"}],"tier":"poc_unverified"},"has_fix":null,"headline":"MergeAccount PHP object injection via session-key substitution","id":"CVE-2026-103442","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"API permits session-seeded javascript URL XSS","id":"CVE-2026-103443"},"packages":[],"prev":{"headline":"Unauthenticated arbitrary file deletion through Wikibase serialized entity parsing","id":"CVE-2026-103441"},"products":["MediaWiki CentralAuth 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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-09-30","vendors":["The Wikimedia Foundation"]},"summary":"Attackers can execute arbitrary code via PHP object injection in the MediaWiki CentralAuth extension by manipulating session keys.","url":"https://insights.sbomify.com/CVE-2026-103442/"}