CVE-2024-28118 json
Grav vulnerable to Server Side Template Injection (SSTI)
published 2024-03-21 2 y ago modified 2026-09-10 1 mo ago also EUVD-2024-0998 , GHSA-r6vw-8v8r-pmp4
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
Grav is an open-source, flat-file content management system. Prior to version 1.7.45, due to the unrestricted access to twig extension class from Grav context, an attacker can redefine config variable. As a result, attacker can bypass a previous SSTI mitigation. Twig processing of static pages can be enabled in the front matter by any administrative user allowed to create or edit pages. As the Twig processor runs unsandboxed, this behavior can be used to gain arbitrary code execution and elevate privileges on the instance. Version 1.7.45 contains a fix for this issue.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/getgrav/grav/security/advisories/GHSA-r6vw-8v8r-pmp4 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | getgrav/grav | <1.7.45 |
1.7.45 |
Affected products
- getgrav grav
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
References
-
github.com
/getgrav/grav/commit/de1ccfa12dbcbf526104d68c1a6bc202a98698fe
web, patch
-
github.com
/getgrav/grav/security/advisories/GHSA-r6vw-8v8r-pmp4
web, exploit, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-28118
advisory
-
github.com
/getgrav/grav
package
Sources
- CVE List CVE-2024-28118
- GitHub Advisory GHSA-r6vw-8v8r-pmp4
- NVD CVE-2024-28118
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.