CVE-2026-63361CWE-79cross-site-scripting

CVE-2026-63361

published August 14, 2026

CVSS
8.5
EPSS
1%
Percentile
44.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
8.5 · NONE
CVSS v4.0
8.5 · 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
EPSS
0.00529 · 44.0th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-08-14T22:18Z
References (4)
https://fluidattacks.com/es/advisories/mercedes · [email protected]https://github.com/LimeSurvey/LimeSurvey · [email protected]https://github.com/LimeSurvey/LimeSurvey/commit/a8993bfd05c4a11255b8400ed9c41a2c22e93aa4 · [email protected]https://fluidattacks.com/es/advisories/mercedes · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 14 AUG 17:04Z
    LimeSurvey Community Edition 7.0.5+260623 - Reflected XSS in HTML editor popup
    cvelistv5