CVE-2024-27921
A file upload path traversal vulnerability has been identified in the application prior to version 1.7.45, enabling attackers to replace or create files with extensions like .json, .zip, .css, .gif, etc.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 60.6%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
Grav is an open-source, flat-file content management system. A file upload path traversal vulnerability has been identified in the application prior to version 1.7.45, enabling attackers to replace or create files with extensions like .json, .zip, .css, .gif, etc. This critical security flaw poses severe risks, that can allow attackers to inject arbitrary code on the server, undermine integrity of backup files by overwriting existing files or creating new ones, and exfiltrate sensitive data using CSS exfiltration techniques. Upgrading to patched version 1.7.45 can mitigate the issue.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 60.59% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- getgrav/grav
- Source
- security-advisories@github.com
EPSS 60.6% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/getgrav/grav/commit/5928411b86bab05afca2b33db4e7386a44858e99Patch
- https://github.com/getgrav/grav/security/advisories/GHSA-m7hx-hw6h-mqmcExploit, Vendor Advisory
- https://github.com/getgrav/grav/commit/5928411b86bab05afca2b33db4e7386a44858e99Patch
- https://github.com/getgrav/grav/security/advisories/GHSA-m7hx-hw6h-mqmcExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.