Is there a public exploit for CVE-2026-115640?

No public exploit for CVE-2026-115640 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-115640?

CVE-2026-115640 scores CVSS 7.4 (v4.0), rated high.

What does CVE-2026-115640 affect?

CVE-2026-115640 affects LimeSurvey LimeSurvey Community Edition.

7.4 High

LimeSurvey Community Edition 7.7.0 contains a stored cross-site scripting vulnerability in the Central Participants Database blocklist…

CVE-2026-115640

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 participantid 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 participantid 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.

Assessment

CVSS: 7.4 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 10 November 2026
Last updated: 10 November 2026
Affected: LimeSurvey · LimeSurvey Community Edition
Assigner: Fluid Attacks

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N

At the source

EUVD (ENISA)

References

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