{"id":"CVE-2025-6589","state":"PUBLISHED","title":"With MultiBlocks enabled and a user who is suppressed via a MultiBlock, a user without 'hideuser' can see the hidden username in the BlockList","description":"Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/specials/pagers/BlockListPager.Php.\n\nThis issue affects MediaWiki: >= 1.42.0.","publishedAt":"2026-02-02T23:03:45.939Z","updatedAt":"2026-03-03T15:37:40.261Z","severity":{"score":2.1,"label":"Low","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y","source":"wikimedia-foundation"},"assigner":"wikimedia-foundation","products":["Wikimedia Foundation MediaWiki"],"affected":[{"vendor":"Wikimedia Foundation","product":"MediaWiki","defaultStatus":"unaffected","versions":[{"version":">= 1.42.0","status":"affected"}],"programFiles":["includes/specials/pagers/BlockListPager.php"],"repo":"https://gerrit.wikimedia.org/g/mediawiki/core/+/refs/heads/master"}],"references":["https://phabricator.wikimedia.org/T391343"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:10:04.440Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/6xxx/CVE-2025-6589.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-6589","state":"PUBLISHED","datePublished":"2026-02-02T23:03:45.939Z","dateUpdated":"2026-03-03T15:37:40.261Z","assignerShortName":"wikimedia-foundation","assignerOrgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","dateReserved":"2025-06-24T22:27:40.662Z"},"containers":{"cna":{"title":"With MultiBlocks enabled and a user who is suppressed via a MultiBlock, a user without 'hideuser' can see the hidden username in the BlockList","descriptions":[{"lang":"en","value":"Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/specials/pagers/BlockListPager.Php.\n\nThis issue affects MediaWiki: >= 1.42.0."}],"affected":[{"vendor":"Wikimedia Foundation","product":"MediaWiki","defaultStatus":"unaffected","versions":[{"version":">= 1.42.0","status":"affected"}],"programFiles":["includes/specials/pagers/BlockListPager.php"],"repo":"https://gerrit.wikimedia.org/g/mediawiki/core/+/refs/heads/master"}],"references":[{"url":"https://phabricator.wikimedia.org/T391343"}],"metrics":[{"cvssV4_0":{"Automatable":"YES","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":2.1,"baseSeverity":"LOW","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"providerMetadata":{"shortName":"wikimedia-foundation","orgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","dateUpdated":"2026-02-02T23:03:45.939Z"},"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-03T21:11:14.495769Z","id":"CVE-2025-6589","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","type":"CWE","lang":"en","description":"CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-03T15:37:40.261Z"}}]}}}