High 8.5Published Aug 14, 2026

CVE-2026-63361LimeSurvey Community Edition 7.0.5 - Reflected XSS in HTML editor popup

Updated under an hour ago (2026-10-19 07:30 UTC)

Does this affect you?

It affects LimeSurvey. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for LimeSurvey

Exploited in the last 30 days

LimeSurvey Community Edition 7.0.5 contains an authenticated reflected cross-site scripting vulnerability in the HTML editor popup endpoint. The text and name query parameters are passed through a blacklist sanitizer and then rendered without context-appropriate output encoding.

CVSS: 8.5 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Fluid Attacks
NVD analysis: Deferred
Record last updated: Aug 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

LimeSurvey LimeSurvey limesurvey:limesurvey (from the name)	7.0.5	CNA record

References

https://fluidattacks.com/es/advisories/mercedesthird-party-advisory
https://github.com/LimeSurvey/LimeSurveyproduct
https://github.com/LimeSurvey/LimeSurvey/commit/a8993bfd05c4a11255b8400ed9c41a2c22e93aa4patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.