LimeSurvey SSRF via REST API Survey Template Host Header
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
LimeSurvey through 6.17.10 and 7.0.4 contains a server-side request forgery vulnerability in the REST API survey template endpoint that allows authenticated users to cause the server to issue arbitrary HTTP requests by supplying a manipulated Host header. Attackers can exploit the unsanitized use of the HTTP Host header in the getTemplateData() function to reach internal network services, cloud metadata endpoints, and extract sensitive credentials such as IAM tokens from instance metadata services.
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 | up to 6.17.10; up to 7.0.4 | — | No fix listed | CNA |
- LimeSurvey VendorLimeSurvey Affected up to 6.17.10; up to 7.0.4 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-2026-63107
- 2026-10-03 Alias added: GHSA-34qp-wv4h-827h
References
Exploit 1
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-2026-63107 · CVE Program
- CVE-2026-63107 · NVD
- FIRST EPSS
- GHSA-34qp-wv4h-827h · 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