Vulnerability · Published Oct 2, 2026 · Assigned by Fluid Attacks

CVE-2026-102626LimeSurvey Community Edition 7.4.0 - Stored XSS through the Date/Time date_min question attribute

High 7.2

In plain English

A high-severity cross-site scripting in LimeSurvey from LimeSurvey. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 4.0)7.2High

Exploit odds (30 days)0.3%top 80.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

An authenticated LimeSurvey Community Edition 7.4.0 user with the global Surveys: create permission can store a JavaScript-breaking value in the date_min attribute of a Date/Time question. When another user renders the affected question, LimeSurvey inserts the stored value into a single-quoted inline JavaScript literal without JavaScript-context encoding.

Affected products (as reported)

Vendor	Product	Versions
LimeSurvey	LimeSurvey	7.4.0

Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N

References

https://fluidattacks.com/advisories/golden third-party-advisory
https://github.com/LimeSurvey/LimeSurvey/ product
https://github.com/LimeSurvey/LimeSurvey/commit/32e54f14f0b4ddc2d8144daaabf7e23c3bbfb8e8 patch