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TI-2026-51045 Aliases CVE-2026-72819GHSA-r94f-hx44-8jqf

Grav CMS before 2.0.13 Remote Code Execution via ZIP Upload

Priority HIGH 73CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00902 59th percentileScored 2026-11-07
Fix Fixed grav (getgrav): 2.0.13getgrav/grav (Packagist): 2.0.13

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
getgravgravbefore 2.0.132.0.13Patch availableCNA
—getgrav/grav (Packagist)before 2.0.132.0.13Patch availableGHSA-r94f-hx44-8jqf
  • grav Vendorgetgrav Affected before 2.0.13 Fixed in 2.0.13 Patch available CNA
  • getgrav/grav (Packagist) Vendor— Affected before 2.0.13 Fixed in 2.0.13 Patch available GHSA-r94f-hx44-8jqf

Remediation

  • Fix · CNA grav (getgrav) Fixed in 2.0.13
  • Fix · GHSA-r94f-hx44-8jqf getgrav/grav (Packagist) Fixed in 2.0.13 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    getgrav grav 2.0.13

    3 records Highest priority Priority HIGH 2 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2026-51053 Grav CMS before 2.0.13 Remote Code Execution via TwigPriority HIGH 73
    • TI-2026-51046 Grav 2.0.11 Path Traversal via Backup Profile ConfigurationPriority MEDIUM 64

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-72819
  2. 2026-10-03 Alias added: GHSA-r94f-hx44-8jqf

References

  • TI-2026-30893 Grav: Privilege Escalation via Missing Server-Side Validation of groups/access CVSS 3.1CRITICAL 9.4
  • TI-2025-28971 Cross Site Scripting vulnerability in grav v.1.7.48 and before allows an attacker to… CVSS 3.1CRITICAL 9.8
  • TI-2021-04523 Unauthenticated Arbitrary YAML Write/Update leads to Code Execution CVSS 3.1CRITICAL 9.8
  • TI-2026-50940 Grav CMS before 2.0.16 Origin Validation Bypass via Referer CVSS 4.0CRITICAL 9.3
  • TI-2026-46446 Grav before 2.0.7 Remote Code Execution via Blueprint dynamicData CVSS 4.0CRITICAL 9.3
  • TI-2021-22428 GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticated) (2) CVSS 4.0CRITICAL 9.3
See all 228 →

Sources