What’s Vulnerable › Vulnerabilities

CVE-2026-91775: LimeSurvey Community Edition 7.0.14 - Reflected XSS through unescaped LSS survey-import warnings

• Severity: high (CVSS 7.4 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-23 · updated 2026-10-02
• Weakness: CWE-79

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.

Affected products

• LimeSurvey: 7.0.14

References

• https://fluidattacks.com/advisories/alone
• https://github.com/LimeSurvey/LimeSurvey
• https://github.com/LimeSurvey/LimeSurvey/commit/c96db8093e852eb8b1a2ebbb32478d6fb34cb651
• https://fluidattacks.com/advisories/alone

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