CVE-2026-91775

LimeSurvey Community Edition 7.0.14 - Reflected XSS through unescaped LSS survey-import warnings

State: Published
Severity: 7.4 High
Published: Sep 23, 2026
Updated: Oct 2, 2026
Reserved: Sep 15, 2026

Description

LimeSurvey Community Edition 7.0.14 fails to safely encode attacker-controlled content from a crafted .lss survey file when displaying import warnings, resulting in XSS in the administrative interface.

Scores

CVSS	Score	Vector	Source
4.0	7.4 High	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N	Fluid Attacks

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Affected Products

Product	Versions
LimeSurveyLimeSurvey	7.0.14Affected

References

https://fluidattacks.com/advisories/alonethird-party-advisory
https://github.com/LimeSurvey/LimeSurveyproduct
https://github.com/LimeSurvey/LimeSurvey/commit/c96db8093e852eb8b1a2ebbb32478d6fb34cb651patch

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