CVE-2026-56701
Grav - XML External Entity Injection via SVG Upload
- State
- Published
- Severity
- 7.1 High
- Published
- Jun 23, 2026
- Updated
- Oct 8, 2026
- Reserved
- Jun 22, 2026
Description
Grav before 2.0.0-beta.2 contains an XML external entity injection vulnerability in SVG file upload processing that allows authenticated attackers to read arbitrary files. The application uses simplexml_load_string without disabling external entity loading, enabling attackers to inject XXE payloads via malicious SVG files to exfiltrate sensitive data.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-611 Improper Restriction of XML External Entity Reference
Affected Products
| Product | Versions |
|---|---|
GravGrav |
|
References
- GitHub Security Advisory (GHSA-3446-6mgw-f79p)vendor-advisory
- VulnCheck Advisory: Grav - XML External Entity Injection via SVG Uploadthird-party-advisory
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