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Vulnerability record · CVE-2026-16809 · published 26 August 2026

CVE-2026-16809: Cross-site scripting vulnerability

LimeSurvey Community Edition 7.0.5 contains a stored cross-site scripting vulnerability in the survey quota creation workflow. An authenticated low-privileged user who can create and manage their own survey can store malicious JavaScript in a quota message. This issue affects LimeSurvey: 7.0.5.

7.2 CVSS 4.0 High EPSS 0.24% · top 86.1% CWE-79 · Cross-site scripting Deferred
7.2CVSS 4.0 base score
0.24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
28 Aug 2026Last modified by NVD

Description

LimeSurvey Community Edition 7.0.5 contains a stored cross-site scripting vulnerability in the survey quota creation workflow. An authenticated low-privileged user who can create and manage their own survey can store malicious JavaScript in a quota message. This issue affects LimeSurvey: 7.0.5.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://fluidattacks.com/es/advisories/wellerman
https://github.com/LimeSurvey/LimeSurvey
https://fluidattacks.com/es/advisories/wellerman

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Source: NIST National Vulnerability Database (record CVE-2026-16809), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.