{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-115640", "assignerOrgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869", "state": "PUBLISHED", "assignerShortName": "Fluid Attacks", "dateReserved": "2026-10-23T03:27:16.273Z", "datePublished": "2026-11-10T04:12:19.302Z", "dateUpdated": "2026-11-10T04:12:19.302Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869", "shortName": "Fluid Attacks", "dateUpdated": "2026-11-10T04:12:19.302Z"}, "title": "LimeSurvey Community Edition 7.7.0 - Stored XSS in Central Participants blocklist control", "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": "LimeSurvey", "product": "LimeSurvey Community Edition", "platforms": ["Windows", "MacOS", "Linux"], "repo": "https://github.com/LimeSurvey/LimeSurvey", "versions": [{"status": "affected", "version": "3.0.0", "lessThanOrEqual": "7.7.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"operator": "OR", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:limesurvey:limesurvey_community_edition:*:*:windows:*:*:*:*:*", "versionStartIncluding": "3.0.0", "versionEndIncluding": "7.7.0"}, {"vulnerable": true, "criteria": "cpe:2.3:a:limesurvey:limesurvey_community_edition:*:*:macos:*:*:*:*:*", "versionStartIncluding": "3.0.0", "versionEndIncluding": "7.7.0"}, {"vulnerable": true, "criteria": "cpe:2.3:a:limesurvey:limesurvey_community_edition:*:*:linux:*:*:*:*:*", "versionStartIncluding": "3.0.0", "versionEndIncluding": "7.7.0"}]}]}], "descriptions": [{"lang": "en", "value": "LimeSurvey Community Edition 7.7.0 contains a stored cross-site scripting vulnerability in the Central Participants Database blocklist control. An authenticated user with only global participantpanel:import permission can import a CSV participant_id containing HTML. The import flow persists that value without model validation. When a CPDB editor opens the participant list, LimeSurvey derives ButtonGroupWidget id and name attributes from participant_id and inserts them without HTML encoding, causing attacker-controlled markup to execute in the victim's authenticated LimeSurvey origin. Exploitation can access session-exposed data and issue same-origin requests with the victim's effective permissions.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "LimeSurvey Community Edition 7.7.0 contains a stored cross-site scripting vulnerability in the Central Participants Database blocklist control. An authenticated user with only global participantpanel:import permission can import a CSV participant_id containing HTML. The import flow persists that value without model validation. When a CPDB editor opens the participant list, LimeSurvey derives ButtonGroupWidget id and name attributes from participant_id and inserts them without HTML encoding, causing attacker-controlled markup to execute in the victim's authenticated LimeSurvey origin. Exploitation can access session-exposed data and issue same-origin requests with the victim's effective permissions."}]}], "references": [{"url": "https://fluidattacks.com/es/advisories/angel", "tags": ["third-party-advisory"]}, {"url": "https://github.com/LimeSurvey/LimeSurvey/", "tags": ["product"]}, {"url": "https://github.com/LimeSurvey/LimeSurvey/commit/4cd281828422abf94468052016eba8897d5ec9aa", "tags": ["patch"]}, {"url": "https://github.com/LimeSurvey/LimeSurvey/releases/tag/7.9.0+261029", "tags": ["release-notes"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 7.4, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N"}}], "workarounds": [{"lang": "en", "value": "Restrict CPDB Import and Update permissions and remove suspicious participant IDs until upgrade completion.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Restrict CPDB Import and Update permissions and remove suspicious participant IDs until upgrade completion."}]}], "solutions": [{"lang": "en", "value": "Upgrade to LimeSurvey Community Edition 7.9.0\u00a0or later; the vendor patch validates newly imported participant IDs and encodes ButtonGroupWidget attributes.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Upgrade to LimeSurvey Community Edition 7.9.0&nbsp;<span>or later; the vendor patch validates newly imported participant IDs and encodes ButtonGroupWidget attributes.</span>"}]}], "timeline": [{"time": "2026-10-22T05:00:00.000Z", "lang": "en", "value": "Vulnerability discovered"}, {"time": "2026-10-23T16:46:00.000Z", "lang": "en", "value": "Vendor contacted"}, {"time": "2026-10-28T18:27:00.000Z", "lang": "en", "value": "Vendor replied"}, {"time": "2026-10-29T13:37:00.000Z", "lang": "en", "value": "Vulnerability patched"}, {"time": "2026-11-10T04:10:00.000Z", "lang": "en", "value": "Public disclosure"}], "credits": [{"lang": "en", "value": "Fluid Attacks' AI SAST Scanner", "type": "finder"}, {"lang": "en", "value": "Miguel G\u00f3mez", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

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