PatchSiren cyber security CVE debrief
CVE-2026-7317 Grav CVE debrief
A vulnerability was found in Grav CMS, affecting the FileCache::doGet function in the file system/src/Grav/Framework/Cache/Adapter/FileCache.php component. The vulnerability allows for deserialization and can be exploited remotely with high complexity. The attack requires a high level of complexity and appears to be difficult to exploit. However, the exploit has been made public and could be used by attackers. Users should review their deployments and plan for an upgrade to version 2.0.0-beta.2 or later.
- Vendor
- Grav
- Product
- CMS
- CVSS
- LOW 1.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-04-28
- Original CVE updated
- 2026-07-24
- Advisory published
- 2026-04-28
- Advisory updated
- 2026-07-24
Who should care
Users of Grav CMS up to version 1.7.49.5/2.0.0-beta.1 should be aware of this vulnerability and take necessary actions to upgrade. Operators, administrators, and security teams should review their deployments for affected versions and plan for remediation.
Technical summary
The vulnerability is caused by the insecure deserialization in the FileCache::doGet function of the Grav CMS. This function is part of the cache value handler component. The attack requires a high level of complexity and appears to be difficult to exploit. However, the exploit has been made public and could be used by attackers. Affected product deployments should be reviewed for exposure and upgraded to version 2.0.0-beta.2 or later.
Defensive priority
Low priority due to high complexity and low CVSS score. However, defenders should still review their deployments and plan for remediation due to the public availability of the exploit.
Recommended defensive actions
- Upgrade Grav CMS to version 2.0.0-beta.2 or later
- Apply patch c66dfeb5f
- Monitor for suspicious activity
- Inventory and verify Grav CMS versions
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
Evidence notes
The CVE record was published on 2026-04-28T22:16:51.710Z and was last modified on 2026-07-24T08:10:00.150Z. The NVD entry is currently Deferred. Evidence is limited to public CVE and NVD information. Defenders should verify affected scope and vendor guidance with official sources.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-04-28T22:16:51.710Z and has not been modified since then. The NVD entry is currently Deferred.