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TI-2026-48496 Aliases CVE-2026-69089GHSA-w3f4-8pj2-599w

Grav CMS before 2.0.11 Path Traversal via watermark

Priority HIGH 73CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-22 and the CVSS impact.

Summary

Grav CMS 2.0.10 contains a path traversal vulnerability in ImageMedium::watermark(), which passes its unsanitized $image argument to RocketTheme\Toolbox\ResourceLocator\UniformResourceLocator::findResource(). Because the file:// scheme branch only lexically collapses '..' segments without a realpath/containment check, an editor authoring Markdown image syntax with traversal sequences can cause arbitrary image files outside Grav's media sandbox to be composited into a carrier image, which is then cached and served from a public, unauthenticated URL — disclosing those files to anonymous visitors.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00459 40th percentileScored 2026-11-07
Fix Fixed grav (getgrav): 2.0.11getgrav/grav (Packagist): 2.0.11

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 2.0.112.0.11Patch availableCNA
—getgrav/grav (Packagist)2.0.10 to before 2.0.112.0.11Patch availableGHSA-w3f4-8pj2-599w
  • grav Vendorgetgrav Affected before 2.0.11 Fixed in 2.0.11 Patch available CNA
  • getgrav/grav (Packagist) Vendor— Affected 2.0.10 to before 2.0.11 Fixed in 2.0.11 Patch available GHSA-w3f4-8pj2-599w

Remediation

  • Fix · CNA grav (getgrav) Fixed in 2.0.11
  • Fix · GHSA-w3f4-8pj2-599w getgrav/grav (Packagist) Fixed in 2.0.11 Advisory →

Fixed in the same release

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

  • Release ·

    getgrav grav 2.0.11

    2 records Highest priority Priority HIGH 2 HIGH

    Other records, highest priority first

    • TI-2026-48495 Grav CMS 2.0.7 through 2.0.10 Arbitrary Method Invocation via BlueprintPriority HIGH 72
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-69089
  2. 2026-10-03 Alias added: GHSA-w3f4-8pj2-599w

References

Patch 3

Advisory 2

Other 1

  • 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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences