CVE-2026-61607

Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content. Prior to 1.0.2, the Grav API plugin POST /api/v1/media pipeline in HandlesMediaUploads::processUploadedFile() validates an SVG filename extension but does not invoke Security::sanitizeSVG(). An attacker with api.media.write permission can store an SVG containing JavaScript, and the server returns the file as Content-Type: image/svg+xml so the script executes when a victim opens it, allowing session data theft and authenticated actions. This issue is fixed in version 1.0.2.

CVSS v3 4.6 MEDIUM

4.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/getgrav/grav-plugin-api/commit/d25eedb84a387f2c71b12a374f2a4b3d74339a7e
https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.2
https://github.com/getgrav/grav/security/advisories/GHSA-7vhm-8x52-2r5p
https://github.com/getgrav/grav/security/advisories/GHSA-7vhm-8x52-2r5p

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 16:18

Updated : 2026-09-09 21:13

NVD link : CVE-2026-61607

Mitre link : CVE-2026-61607

CVE.ORG link : CVE-2026-61607

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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