{"answers":{"affected":"1 open source package ship an affected version, including mediawiki. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-31554 in the wild and no public exploit code.","fix":"Upgrade mediawiki to 1.35.3 or later.","what":"CVE-2021-31554 is a medium-severity authentication bypass vulnerability in Mediawiki Mediawiki, published on 22 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-31554 and fix it if it is affected.\n\nWhat it is: CVE-2021-31554 is a medium-severity authentication bypass vulnerability in Mediawiki Mediawiki, published on 22 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-31554 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- mediawiki (Bitnami): affected all versions; fixed in 1.35.3\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-2021-31554/ (Markdown: https://insights.sbomify.com/CVE-2021-31554/index.md)","id":"CVE-2021-31554","markdown":"https://insights.sbomify.com/CVE-2021-31554/index.md","name":"CVE-2021-31554","record":{"aliases":["BIT-mediawiki-2021-31554","GHSA-j4g8-vqq3-7h58"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"MediaWiki AbuseFilter extension","requires_auth":"low_privilege","summary":"Attackers can bypass account blocks in MediaWiki's AbuseFilter extension, allowing malicious users to remain active despite being blocked.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"mediawiki","vendor":"mediawiki"}],"cvss":{"score":5.4,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. It improperly handled account blocks for certain automatically created MediaWiki user accounts, thus allowing nefarious users to remain unblocked.","ecosystems":["Bitnami"],"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":"Auth bypass in n/a","id":"CVE-2021-31554","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"mediawiki:mediawiki","products":["mediawiki:mediawiki"],"type":"auth_bypass","year":"2021"},"n_packages":1,"n_references":2,"next":{"headline":"Denial of service in n/a","id":"CVE-2021-31555"},"packages":[{"ecosystem":"Bitnami","fixed":["1.35.3"],"introduced":["0"],"last_affected":[],"package":"mediawiki","purl":"pkg:bitnami/mediawiki","source":"BIT-mediawiki-2021-31554"}],"prev":{"headline":"Denial of service in n/a","id":"CVE-2021-31553"},"products":["n/a"],"published":"2021-04-22","related":[{"cvss_score":9.8,"headline":"Denial of service in n/a","id":"CVE-2023-37303","kev_date_added":null,"published":"2023-06-30"},{"cvss_score":9.8,"headline":"SQL injection in n/a","id":"CVE-2022-29904","kev_date_added":null,"published":"2022-04-29"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2022-29906","kev_date_added":null,"published":"2022-04-29"},{"cvss_score":9.8,"headline":"Business logic in n/a","id":"CVE-2022-28205","kev_date_added":null,"published":"2022-03-30"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2022-28206","kev_date_added":null,"published":"2022-03-30"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2022-28209","kev_date_added":null,"published":"2022-03-30"},{"cvss_score":9.8,"headline":"Business logic in n/a","id":"CVE-2021-36126","kev_date_added":null,"published":"2021-07-02"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can bypass account blocks in MediaWiki's AbuseFilter extension, allowing malicious users to remain active despite being blocked.","url":"https://insights.sbomify.com/CVE-2021-31554/"}