CVE-2026-114657: Exposure of Sensitive Information to an Unauthorized Actor in getgrav grav
Description
Grav versions from 2.0.0 up to but not including 2.2.5 contain an information disclosure vulnerability. This flaw allows page authors to capture visitors' HTTP Basic authentication credentials by embedding them in Twig page content. Specifically, authors can print the request URI object, which includes PHP_AUTH_USER and PHP_AUTH_PW, inside an inline style background image, potentially exfiltrating administrator credentials to an external host.
CVSS v4.0
Score 6.9medium
Affected software
getgrav
grav
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-114657 is an information disclosure vulnerability in Grav CMS versions >=2.0.0 and <2.2.5. The vulnerability arises because page authors can include the request URI object in Twig templates. This object embeds HTTP Basic authentication credentials (PHP_AUTH_USER and PHP_AUTH_PW). By printing this object inside an inline style background image, authors can exfiltrate sensitive administrator credentials to external hosts, exposing them to unauthorized actors.
Potential Impact
The vulnerability allows unauthorized actors to obtain HTTP Basic authentication credentials of administrators if they can inject or modify Twig page content. This leads to exposure of sensitive information, potentially compromising administrative access. The CVSS 4.0 score is 6.9 (medium severity), reflecting network attack vector, low attack complexity, and partial user interaction required.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict page author permissions to prevent untrusted users from injecting Twig content that can access request URI objects containing credentials.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-21T21:59:05.256Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad96eff4d27ba8daa1d22f8
Added to database: 10/22/2026, 02:03:43 UTC
Last enriched: 10/22/2026, 02:15:53 UTC
Last updated: 10/22/2026, 02:18:51 UTC
Views: 5
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