CVE-2026-63361

high

Description

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.

References

https://github.com/LimeSurvey/LimeSurvey/commit/a8993bfd05c4a11255b8400ed9c41a2c22e93aa4

https://github.com/LimeSurvey/LimeSurvey

https://fluidattacks.com/es/advisories/mercedes

Details

Source: Mitre, NVD

Published: 2026-08-14

Updated: 2026-08-28

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Severity: Medium

CVSS v4

Base Score: 8.5

Vector: 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

Severity: High

EPSS

EPSS: 0.00305