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TI-2026-79156 Aliases CVE-2026-114657GHSA-84ch-j6rx-rh66

Grav discloses HTTP Basic credentials through Twig Uri output

Priority LOW 30CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
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 2.0.0 before 2.2.5 contains an information disclosure flaw (CWE-200) that lets page authors read visitors' HTTP Basic credentials through Twig page content. A page author can print the request Uri object inside an inline style background image, which sends the embedded credentials to an external host. The attacker needs low privileges to author pages and user interaction from a visitor, such as an administrator loading the page.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Grav from 2.0.0 before 2.2.5 contains an information disclosure vulnerability that allows page authors to capture visitors' HTTP Basic credentials through Twig page content. Authors can print the request Uri object, which embeds PHP_AUTH_USER and PHP_AUTH_PW, inside an inline style background image to exfiltrate administrators' credentials to an external host.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00217 12th percentileScored 2026-11-07
Fix Fixed grav (getgrav): 2.2.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
getgravgrav2.0.0 to before 2.2.52.2.5Patch availableCNA
  • grav Vendorgetgrav Affected 2.0.0 to before 2.2.5 Fixed in 2.2.5 Patch available CNA

Remediation

Update Grav to version 2.2.5 or later, which is the fixed version listed for getgrav grav.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA grav (getgrav) Fixed in 2.2.5

Fixed in the same release

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

  • Release ·

    getgrav grav 2.2.5

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-79159 Unauthorized page deletion in Grav via Flex form directivesPriority LOW 30
    Show all 2 records →

Timeline

  1. 2026-10-22 Threatist record created from CVE-2026-114657
  2. 2026-10-22 Alias added: GHSA-84ch-j6rx-rh66
  3. 2026-10-23 Priority changed: MEDIUM → LOW
  4. 2026-10-28 CISA SSVC decision points changed

References

Advisory 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