CVE-2026-63361

EUVD-2026-58731
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
Fluid AttacksCNA
8.5 HIGH
NETWORK
LOW
NONE
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
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
limesurveylimesurvey
7.0.5
CNA
Common Weakness Enumeration
References
https://fluidattacks.com/es/advisories/mercedes
https://github.com/LimeSurvey/LimeSurvey
https://github.com/LimeSurvey/LimeSurvey/commit/a8993bfd05c4a11255b8400ed9c41a2c22e93aa4
https://fluidattacks.com/es/advisories/mercedes