CVE-2026-103046

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103046", "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "state": "PUBLISHED", "assignerShortName": "wikimedia-foundation", "dateReserved": "2026-09-29T22:29:32.001Z", "datePublished": "2026-09-29T22:41:36.099Z", "dateUpdated": "2026-09-30T20:01:03.715Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "shortName": "wikimedia-foundation", "dateUpdated": "2026-09-29T22:52:46.221Z"}, "title": "WikifunctionsFragmentRenderer does unsafe string replacements on user-provided HTML", "datePublic": "2026-09-29T22:32:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-79", "description": "CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-592", "descriptions": [{"lang": "en", "value": "CAPEC-592 Stored XSS"}]}], "affected": [{"vendor": "The Wikimedia Foundation", "product": "Mediawiki - WikiLambda Extension", "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/WikiLambda/+/refs/heads/master", "versions": [{"status": "affected", "version": "0", "lessThan": "1.46.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.<p>This issue affects MediaWiki - WikiLambda extension: before 1.46.1.</p>"}]}], "references": [{"url": "https://phabricator.wikimedia.org/T428829", "tags": ["issue-tracking"]}, {"url": "https://gerrit.wikimedia.org/r/c/1307827", "tags": ["mitigation"]}], "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": [{"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"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-30T20:01:03.715Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"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": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-30T18:15:21.246Z"}}], "cna": {"title": "WikifunctionsFragmentRenderer does unsafe string replacements on user-provided HTML", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "reporter", "value": "SomeRandomDeveloper"}, {"lang": "en", "type": "remediation developer", "value": "James Forrester"}], "impacts": [{"capecId": "CAPEC-592", "descriptions": [{"lang": "en", "value": "CAPEC-592 Stored XSS"}]}], "affected": [{"repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/WikiLambda/+/refs/heads/master", "vendor": "The Wikimedia Foundation", "product": "Mediawiki - WikiLambda Extension", "versions": [{"status": "affected", "version": "0", "lessThan": "1.46.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "datePublic": "2026-09-29T22:32:00.000Z", "references": [{"url": "https://phabricator.wikimedia.org/T428829", "tags": ["issue-tracking"]}, {"url": "https://gerrit.wikimedia.org/r/c/1307827", "tags": ["mitigation"]}], "x_generator": {"engine": "Vulnogram 1.0.5"}, "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.", "supportingMedia": [{"type": "text/html", "value": "Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.<p>This issue affects MediaWiki - WikiLambda extension: before 1.46.1.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')"}]}], "providerMetadata": {"orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "shortName": "wikimedia-foundation", "dateUpdated": "2026-09-29T22:52:46.221Z"}}}, "cveMetadata": {"cveId": "CVE-2026-103046", "state": "PUBLISHED", "dateUpdated": "2026-09-30T20:01:03.715Z", "dateReserved": "2026-09-29T22:29:32.001Z", "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "datePublished": "2026-09-29T22:41:36.099Z", "assignerShortName": "wikimedia-foundation"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Mediawiki - WikiLambda Extension", "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/WikiLambda/+/refs/heads/master", "vendor": "The Wikimedia Foundation", "versions": [{"lessThan": "1.46.1", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"}], "cveTags": [], "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."}], "id": "CVE-2026-103046", "lastModified": "2026-09-30T21:17:07.800", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-103046", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-30T18:15:07.232457Z", "version": "2.0.3"}}]}, "published": "2026-09-29T23:17:22.450", "references": [{"source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "url": "https://gerrit.wikimedia.org/r/c/1307827"}, {"source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "url": "https://phabricator.wikimedia.org/T428829"}], "sourceIdentifier": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.46.1)"}}], "enrichment": {"confidence": 93.0, "confidence_source": "matching", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 93.0, "source": "matching"}]}, "original": {"product": "Mediawiki - WikiLambda Extension", "source": "cna", "vendor": "The Wikimedia Foundation"}, "product": "mediawiki-wikilambda_extension", "vendor": "wikimedia"}], "created": "2026-09-30T10:00:17.704200+00:00", "updated": "2026-10-01T00:30:06.945221+00:00", "vendors": ["wikimedia", "wikimedia$PRODUCT$mediawiki-wikilambda_extension"]}