CVE-2026-97685

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

HIGH
7.1
CVSS Score
Published: September 29, 2026 at 02:20 AM UTC
Updated: September 30, 2026 at 04:19 PM UTC
1 product affected across 1 vendorLimeSurvey

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Severity
HIGH7.1
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHFluid Attacks
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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