{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-61651 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-61651 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-61651 is a cross-site scripting vulnerability in Wikimedia Foundation CheckUser, published on 3 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-61651 and fix it if it is affected.\n\nWhat it is: CVE-2025-61651 is a cross-site scripting vulnerability in Wikimedia Foundation CheckUser, published on 3 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-61651 in the wild and no public exploit code.\n\nAffected product: Wikimedia Foundation CheckUser. 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-2025-61651/ (Markdown: https://insights.sbomify.com/CVE-2025-61651/index.md)","id":"CVE-2025-61651","markdown":"https://insights.sbomify.com/CVE-2025-61651/index.md","name":"CVE-2025-61651","record":{"aliases":["GHSA-rq75-xpj3-jxm4"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"MediaWiki CheckUser extension","requires_auth":"high_privilege","summary":"An attacker can inject malicious scripts via the CheckUser helper interface, potentially leading to code execution or account takeover.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"wikimedia-foundation","cpe":[{"product":"checkuser","vendor":"mediawiki"}],"cvss":{"score":0,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files modules/ext.CheckUser/checkuser/checkUserHelper/buildUserElement.Js.\n\nThis issue affects CheckUser: from * before 1.44.1.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"i18n XSS through Special:CheckUser CheckUser helper","id":"CVE-2025-61651","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"Action API discussiontoolspageinfo does not check for authorizeRead for the page","id":"CVE-2025-61652"},"packages":[],"prev":{"headline":"UserInfoCard is vulnerable to message key stored XSS","id":"CVE-2025-61650"},"products":["CheckUser"],"published":"2026-02-03","related":[{"cvss_score":6.8,"headline":"Cross-site request forgery in n/a","id":"CVE-2015-2940","kev_date_added":null,"published":"2015-04-13"},{"cvss_score":6.5,"headline":"Information disclosure in n/a","id":"CVE-2019-18611","kev_date_added":null,"published":"2019-10-29"},{"cvss_score":5.3,"headline":"Information disclosure in n/a","id":"CVE-2019-16529","kev_date_added":null,"published":"2020-03-19"},{"cvss_score":4.8,"headline":"Suggested investigations: Handle suppressed usernames","id":"CVE-2026-34090","kev_date_added":null,"published":"2026-05-11"},{"cvss_score":1.3,"headline":"Special:GlobalContributions shows edits on wikis the viewer doesn't have access to","id":"CVE-2025-61658","kev_date_added":null,"published":"2026-02-03"},{"cvss_score":0,"headline":"Stored XSS through system messages in CheckUser","id":"CVE-2025-61648","kev_date_added":null,"published":"2026-02-03"}],"sources":[{"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-02-03","vendors":["Wikimedia Foundation"]},"summary":"An attacker can inject malicious scripts via the CheckUser helper interface, potentially leading to code execution or account takeover.","url":"https://insights.sbomify.com/CVE-2025-61651/"}