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CVE-2026-63361

LimeSurvey Community Edition 7.0.5 - Reflected XSS in HTML editor popup

HIGH
8.5
CVSS Score
Published: August 14, 2026 at 05:04 PM UTC
Updated: August 28, 2026 at 03:42 PM UTC
1 product affected across 1 vendorLimeSurvey

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Severity
HIGH8.5
Exploit prediction
EPSS 0.5%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Third Party Advisory
Source: cverecord
https://fluidattacks.com/es/advisories/mercedes
Product
Source: cverecord
https://github.com/LimeSurvey/LimeSurvey
Patch
Source: cverecord
https://github.com/LimeSurvey/LimeSurvey/commit/a8993bfd05c4a11255b8400ed9c41a2c22e93aa4

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHFluid Attacks
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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