A deserialization vulnerability in LimeSurvey before v6.15.0+250623 allows a remote…
Priority MEDIUM 51CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-502.
Summary
A deserialization vulnerability in LimeSurvey before v6.15.0+250623 allows a remote attacker to execute arbitrary code on the server.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00989 62nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:limesurvey:limesurvey:*:*:*:*:*:*:*:* | up to 6.14.3 | Vulnerable | LimeSurvey |
- cpe:2.3:a:limesurvey:limesurvey:*:*:*:*:*:*:*:* Versions up to 6.14.3 Vulnerable ·LimeSurvey
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-56422
- 2026-10-03 Alias added: GHSA-qmh9-5pqq-f7wq
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-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-2022-21122 LimeSurvey before v5.0.4 was discovered to contain a SQL injection vulnerability via the… CVSS 3.1HIGH 7.2
- TI-2007-03523 Multiple PHP remote file inclusion vulnerabilities in LimeSurvey (aka PHPSurveyor)… CVSS 2.0MEDIUM 6.8
- TI-2018-12189 An issue was discovered in TCPDF before 6.2.22. CVSS 3.0CRITICAL 9.8
Sources
- CVE-2025-56422 · CVE Program
- CVE-2025-56422 · NVD
- FIRST EPSS
- GHSA-qmh9-5pqq-f7wq · 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