LimeSurvey Community Edition 7.3.0 - Cross-survey object authorization bypass in REST survey patch operations
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| LimeSurvey | LimeSurvey | 7.3.0 | — | No fix listed | CNA |
- LimeSurvey VendorLimeSurvey Affected 7.3.0 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:limesurvey:limesurvey:*:*:*:*:*:*:*:* | — | — | LimeSurvey |
- cpe:2.3:a:limesurvey:limesurvey:*:*:*:*:*:*:*:* Versions — — ·LimeSurvey
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97685
- 2026-10-03 Alias added: GHSA-c7fj-2fxp-jqpf
References
More LimeSurvey vulnerabilities
- TI-2020-09194 LimeSurvey before 4.1.12+200324 contains a path traversal vulnerability in… CVSS 3.1CRITICAL 9.8
- TI-2025-24280 LimeSurvey 2.0+ - 2.06+ Unauthenticated Arbitrary File Download via Serialized Backup Payload CVSS 4.0HIGH 8.7
- TI-2024-28662 An issue in the js_localize.php function of LimeSurvey v6.6.2 and before allows attackers… CVSS 3.1HIGH 8.8
- TI-2024-26167 Lime Survey <= 6.5.12 is vulnerable to Cross Site Request Forgery (CSRF). CVSS 3.1HIGH 8.8
- TI-2026-45174 LimeSurvey Community Edition 7.0.5 - Reflected XSS in HTML editor popup CVSS 4.0HIGH 8.5
- TI-2026-61986 LimeSurvey Community Edition 7.0.14 - Reflected XSS through unescaped LSS survey-import warnings CVSS 4.0HIGH 7.4
Sources
- CVE-2026-97685 · CVE Program
- CVE-2026-97685 · NVD
- FIRST EPSS
- GHSA-c7fj-2fxp-jqpf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences