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Authorization bypass in Grav Clockwork profiler exposes stored data

Priority MEDIUM 43CWE-200Published · 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. Impact type from CWE-200.

Summary

Grav from 1.7.53.3 before 1.7.53.6 contains an authorization bypass in Debugger::isDebuggerRequestAuthorized() that trusts a loopback REMOTE_ADDR fallback. Behind a same-host reverse proxy, remote requests appear as loopback, so an unauthenticated visitor can read stored /__clockwork/ profiler records (CWE-200). These records can include administrator plaintext passwords and configuration credentials.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

Grav from 1.7.53.3 before 1.7.53.6 contains an authorization bypass in Debugger::isDebuggerRequestAuthorized() that allows unauthenticated visitors to read /__clockwork/ profiler data via a loopback REMOTE_ADDR fallback. Behind a same-host reverse proxy, remote requests appear as loopback, letting attackers read stored records including administrator plaintext passwords and configuration credentials.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00307 23rd percentileScored 2026-11-07
Fix Fixed grav (getgrav): 1.7.53.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
getgravgrav1.7.53.3 to before 1.7.53.61.7.53.6Patch availableCNA
  • grav Vendorgetgrav Affected 1.7.53.3 to before 1.7.53.6 Fixed in 1.7.53.6 Patch available CNA

Remediation

Upgrade Grav to version 1.7.53.6, which is listed as the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

  • Fix · CNA grav (getgrav) Fixed in 1.7.53.6

Timeline

  1. 2026-10-27 Threatist record created from CVE-2026-117604
  2. 2026-10-27 Alias added: GHSA-xgqw-2hp2-cf72
  3. 2026-10-28 Priority changed: MEDIUM → LOW
  4. 2026-11-02 CISA SSVC decision points changed
  5. 2026-11-02 Priority changed: LOW → MEDIUM

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