CVE-2026-97685

LimeSurvey Community Edition 7.3.0 - Cross-survey object authorization bypass in REST survey patch operations

Published Sep 29, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
An authenticated LimeSurvey Community Edition 7.3.0 user allowed to create surveys can use their own survey as an authorized context while supplying question or answer identifiers belonging to another user's survey. The REST survey-patching endpoint checks the attacker's permission against the survey ID in the request URL, but the vulnerable persistence operations resolve the target object independently by its global qid or aid and never verify that it belongs to that authorized survey.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description An authenticated LimeSurvey Community Edition 7.3.0 user allowed to create surveys can use their own survey as an authorized context while supplying question or answer identifiers belonging to another user's survey. The REST survey-patching endpoint checks the attacker's permission against the survey ID in the request URL, but the vulnerable persistence operations resolve the target object independently by its global qid or aid and never verify that it belongs to that authorized survey.
Title LimeSurvey Community Edition 7.3.0 - Cross-survey object authorization bypass in REST survey patch operations
First Time appeared Limesurvey
Limesurvey limesurvey
Weaknesses CWE-639
CPEs cpe:2.3:a:limesurvey:limesurvey:7.3.0:*:linux:*:*:*:*:*
cpe:2.3:a:limesurvey:limesurvey:7.3.0:*:macos:*:*:*:*:*
cpe:2.3:a:limesurvey:limesurvey:7.3.0:*:windows:*:*:*:*:*
Vendors & Products Limesurvey
Limesurvey limesurvey
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Fluid Attacks
Published
Updated
Sep 30, 2026, 3:13 PM
Reserved
Sep 24, 2026, 9:11 PM
Status
Deferred
Published
Sep 29, 2026, 3:17 AM
Modified
Sep 30, 2026, 4:19 PM