{"id":"CVE-2026-103046","state":"PUBLISHED","title":"WikifunctionsFragmentRenderer does unsafe string replacements on user-provided HTML","description":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.\n\nThis issue affects MediaWiki - WikiLambda extension: before 1.46.1.","publishedAt":"2026-09-29T22:41:36.099Z","updatedAt":"2026-09-30T20:01:03.715Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"wikimedia-foundation","products":["The Wikimedia Foundation Mediawiki - WikiLambda Extension"],"affected":[{"vendor":"The Wikimedia Foundation","product":"Mediawiki - WikiLambda Extension","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.46.1","versionType":"semver"}],"repo":"https://gerrit.wikimedia.org/g/mediawiki/extensions/WikiLambda/+/refs/heads/master"}],"references":["https://phabricator.wikimedia.org/T428829","https://gerrit.wikimedia.org/r/c/1307827"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/103xxx/CVE-2026-103046.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-103046","state":"PUBLISHED","datePublished":"2026-09-29T22:41:36.099Z","dateUpdated":"2026-09-30T20:01:03.715Z","assignerShortName":"wikimedia-foundation","assignerOrgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","dateReserved":"2026-09-29T22:29:32.001Z"},"containers":{"cna":{"title":"WikifunctionsFragmentRenderer does unsafe string replacements on user-provided HTML","descriptions":[{"lang":"en","value":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.\n\nThis issue affects MediaWiki - WikiLambda extension: before 1.46.1."}],"affected":[{"vendor":"The Wikimedia Foundation","product":"Mediawiki - WikiLambda Extension","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.46.1","versionType":"semver"}],"repo":"https://gerrit.wikimedia.org/g/mediawiki/extensions/WikiLambda/+/refs/heads/master"}],"references":[{"url":"https://phabricator.wikimedia.org/T428829","tags":["issue-tracking"]},{"url":"https://gerrit.wikimedia.org/r/c/1307827","tags":["mitigation"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"wikimedia-foundation","orgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","dateUpdated":"2026-09-29T22:52:46.221Z"},"datePublic":"2026-09-29T22:32:00.000Z","impacts":[{"capecId":"CAPEC-592","descriptions":[{"lang":"en","value":"CAPEC-592 Stored XSS"}]}],"credits":[{"lang":"en","value":"SomeRandomDeveloper","type":"reporter"},{"lang":"en","value":"James Forrester","type":"remediation developer"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":6.1,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"id":"CVE-2026-103046","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-30T18:15:07.232457Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-30T20:01:03.715Z"}}]}}}