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CVE-2026-97685— LimeSurvey Community Edition 7.3.0 - Cross-survey object authorization bypass in REST survey patch operations

Quick assessment

Affected
LimeSurvey LimeSurvey
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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

CVSS 7.1 · High
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I. Basic Information for CVE-2026-97685

Vulnerability Information

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Vulnerability Title
LimeSurvey Community Edition 7.3.0 - Cross-survey object authorization bypass in REST survey patch operations
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
LimeSurvey LimeSurvey 7.3.0 -

II. Public POCs for CVE-2026-97685

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III. Intelligence Information for CVE-2026-97685

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Other References for CVE-2026-97685 (2)

IV. Related Vulnerabilities

Same product: LimeSurvey
Same vendor: LimeSurvey
Same weakness: CWE-639

V. Comments for CVE-2026-97685

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