LimeSurvey Community Edition 7.0.5 - Stored XSS in quota message rendering

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-16809
StatePUBLISHED
AssignerFluid Attacks
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-26 22:16:23 UTC
Updated2026-08-26 22:16:23 UTC
DescriptionLimeSurvey 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.

Risk And Classification

Primary CVSS: v4.0 7.2 HIGH from [email protected]

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:X/V:X/RE:X/U:X

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

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary7.2HIGHCVSS: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/C...
4.0CNACVSS7.2HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
Low
User Interaction
Active
Confidentiality
High
Integrity
High
Availability
None
Sub Conf.
Low
Sub Integrity
Low
Sub Availability
None

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:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA LimeSurvey LimeSurvey affected 7.0.5 Windows, MacOS, Linux

References

ReferenceSourceLinkTags
fluidattacks.com/es/advisories/wellerman [email protected] fluidattacks.com
github.com/LimeSurvey/LimeSurvey [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Miguel Gómez (en)

CNA: Fluid Attacks' AI SAST Scanner (en)

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