CVE-2026-97685LimeSurvey Community Edition 7.3.0 - Cross-survey object authorization bypass in REST survey patch operations
Updated under an hour ago ()
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EPSS puts the chance of exploitation in the next 30 days at 0.24%, higher than 14% of scored CVEs.
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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.
- CVSS
- 7.1 HIGH (v4.0, CNA)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
- Weakness (CWE)
- CWE-639
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.24% (percentile 14)
- Assigned by
- Fluid Attacks
- NVD analysis
- Deferred
- Record last updated
- Sep 30, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
LimeSurvey LimeSurvey limesurvey:limesurvey (from the name) | 7.3.0 | CNA record |
References
- https://fluidattacks.com/es/advisories/zoothird-party-advisory
- https://github.com/LimeSurvey/LimeSurvey/product
- https://github.com/LimeSurvey/LimeSurvey/commit/a39a01537a8f79581bd630bcac94f71ae6ce2ccepatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.