CVE-2026-72819
Grav CMS before 2.0.13 Remote Code Execution via ZIP Upload
- State
- Published
- Severity
- 8.7 High
- Published
- Aug 14, 2026
- Updated
- Oct 8, 2026
- Reserved
- Aug 10, 2026
Description
Grav CMS before 2.0.13 contains a remote code execution vulnerability in the Flex Objects plugin settings validation that allows authenticated users to execute arbitrary code by uploading a ZIP file containing PHP code. Attackers can bypass routine name validation by using array notation instead of string notation, call the unZip routine with a malicious archive, and write PHP files to the web root for execution.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-94 Improper Control of Generation of Code ('Code Injection')
Affected Products
| Product | Versions |
|---|---|
gravgetgrav |
|
References
- GitHub Security Advisory (GHSA-r94f-hx44-8jqf)vendor-advisory
- VulnCheck Advisory: Grav CMS before 2.0.13 Remote Code Execution via ZIP Uploadthird-party-advisory
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