{"items":[{"id":"NVI-00004619","kind":"vulnerability","title":"MediaWiki Cross-site Scripting (XSS) vulnerability","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-rj9p-8jxj-2ch4","CVE-2020-25812"],"plain_summary":"OSV carries this publisher advisory for mediawiki/core, mediawiki/core. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 1.34.3 for mediawiki/core. Confirm the publisher’s latest guidance.","source_ids":["sr-6d2285440647a9cbe3dc54822776c6fd"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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This report has not examined your application.","related_sources":[{"id":"sr-6d2285440647a9cbe3dc54822776c6fd","url":"https://github.com/advisories/GHSA-rj9p-8jxj-2ch4","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-rj9p-8jxj-2ch4","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.364Z"},{"id":"sr-e62fd5f7ac00a8da10b7380f1eca5b5d","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25812","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2020-25812","publisher":"NIST National Vulnerability Database","observed_at":"2026-10-31T22:07:13.751Z"},{"id":"sr-855f5ab1f3c537cf3988a938e3f96a8e","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2020-25812","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6d2285440647a9cbe3dc54822776c6fd"],"technology":"mediawiki/core","known_exclusions":[],"conditions_summary":"An issue was discovered in MediaWiki 1.34.x before 1.34.3. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. This is vulnerable to a mild XSS if one of those messages is changed to include raw HTML.","public_affected_ranges":["ECOSYSTEM: introduced 1.34.0; fixed 1.34.3"]},{"certainty":"source_listed","source_ids":["sr-6d2285440647a9cbe3dc54822776c6fd"],"technology":"mediawiki/core","known_exclusions":[],"conditions_summary":"An issue was discovered in MediaWiki 1.34.x before 1.34.3. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. This is vulnerable to a mild XSS if one of those messages is changed to include raw HTML.","public_affected_ranges":["ECOSYSTEM: introduced 1.35.0-rc.0; fixed 1.35.0"]}],"null_published_at":"2026-11-03T02:33:09.110Z","source_updated_at":"2024-05-19T02:23:57.377Z","source_disclosed_at":"2022-05-24T17:29:41.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:42:41.364Z"},{"id":"NVI-00004619","kind":"vulnerability","title":"MediaWiki Cross-site Scripting (XSS) vulnerability","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-rj9p-8jxj-2ch4","CVE-2020-25812"],"plain_summary":"OSV carries this publisher advisory for mediawiki/core, mediawiki/core. 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This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-e62fd5f7ac00a8da10b7380f1eca5b5d"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-17T03:07:19.950Z","value":"4.3 MEDIUM (2.0)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-e62fd5f7ac00a8da10b7380f1eca5b5d"},{"kind":"CVSS","as_of":"2026-06-17T03:07:19.950Z","value":"6.1 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-e62fd5f7ac00a8da10b7380f1eca5b5d"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-6d2285440647a9cbe3dc54822776c6fd","url":"https://github.com/advisories/GHSA-rj9p-8jxj-2ch4","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-rj9p-8jxj-2ch4","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.364Z"},{"id":"sr-e62fd5f7ac00a8da10b7380f1eca5b5d","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25812","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2020-25812","publisher":"NIST National Vulnerability Database","observed_at":"2026-10-31T22:07:13.751Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6d2285440647a9cbe3dc54822776c6fd"],"technology":"mediawiki/core","known_exclusions":[],"conditions_summary":"An issue was discovered in MediaWiki 1.34.x before 1.34.3. 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This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-6d2285440647a9cbe3dc54822776c6fd","url":"https://github.com/advisories/GHSA-rj9p-8jxj-2ch4","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-rj9p-8jxj-2ch4","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.364Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6d2285440647a9cbe3dc54822776c6fd"],"technology":"mediawiki/core","known_exclusions":[],"conditions_summary":"An issue was discovered in MediaWiki 1.34.x before 1.34.3. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. 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