{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-126564", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-11T01:43:08.612Z", "datePublished": "2026-11-11T02:35:59.923Z", "dateUpdated": "2026-11-11T02:35:59.923Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-11T02:35:59.923Z"}, "datePublic": "2026-11-10T23:29:41.000Z", "title": "Semantic MediaWiki 2.5.0 before 7.4.1 Stored XSS via Special:Browse Factbox Title", "descriptions": [{"lang": "en", "value": "Semantic MediaWiki 2.5.0 before 7.4.1 contains a stored cross-site scripting vulnerability in ValueFormatter::getFormattedSubject() that renders property label segments after a literal   as unescaped markup. Users with page-edit rights can set a preferred property label containing an img onerror payload that executes when anyone, including administrators, views Special:Browse or the smwbrowse API."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}]}], "affected": [{"vendor": "SemanticMediaWiki", "product": "SemanticMediaWiki", "defaultStatus": "unaffected", "versions": [{"version": "2.5.0", "lessThan": "7.4.1", "status": "affected", "versionType": "semver"}, {"version": "7.4.1", "status": "unaffected", "versionType": "semver"}], "packageURL": "pkg:composer/mediawiki/semantic-media-wiki", "repo": "https://github.com/SemanticMediaWiki/SemanticMediaWiki"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:*:*:*:*:*:mediawiki:*:*", "versionStartIncluding": "2.5.0", "versionEndExcluding": "7.4.1"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "baseScore": 5.1, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-mc5x-2j7v-x8hp", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-mc5x-2j7v-x8hp)"}, {"url": "https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/c9bf9f25549bb2f5eab916339b267a1732002c4c", "tags": ["patch"]}, {"url": "https://github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.4.1", "tags": ["release-notes"], "name": "SemanticMediaWiki 7.4.1 Release Notes"}, {"url": "https://github.com/SemanticMediaWiki/SemanticMediaWiki/blob/7.4.0/src/MediaWiki/Specials/Browse/ValueFormatter.php#L34-L55", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: Semantic MediaWiki 2.5.0 before 7.4.1 Stored XSS via Special:Browse Factbox Title", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/semantic-mediawiki-2.5.0-before-7.4.1-stored-xss-via-special-browse-factbox-title"}], "credits": [{"lang": "en", "value": "AlpetGexha", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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