---
id: CVE-2026-61607
title: >-
  Grav API Plugin is a RESTful API for Grav CMS that provides full headless
  access to your site's content
summary: >-
  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 filen…
severity: medium
cvss: 4.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-08-19'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:13:25.910'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-61607'
references:
  - url: >-
      https://github.com/getgrav/grav-plugin-api/commit/d25eedb84a387f2c71b12a374f2a4b3d74339a7e
    label: security-advisories@github.com
  - url: 'https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.2'
    label: security-advisories@github.com
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-7vhm-8x52-2r5p'
    label: security-advisories@github.com
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-7vhm-8x52-2r5p'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00255
epssPercentile: 0.17437
ingestedAt: '2026-09-09T21:22:45.539Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.