---
id: CVE-2026-51954
title: >-
  An issue in Webasyst Framework 4.0.3 and before allows a remote attacker to
  execute arbitrary code via a crafted OAuth authorization URL with an arbitrary
  redirect_uri.
summary: >-
  An issue in Webasyst Framework 4.0.3 and before allows a remote attacker to
  execute arbitrary code via a crafted OAuth authorization URL with an arbitrary
  redirect_uri.
severity: none
exploitAvailable: true
published: '2026-10-22'
updated: '2026-10-22'
sourceUpdated: '2026-10-22T15:42:26.798Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-51954'
references:
  - url: 'https://github.com/webasyst/webasyst-framework/issues/389'
  - url: >-
      https://support.webasyst.com/forum/48658/unvalidated-redirect_uri-in-oauth-authorization-flow-allows-authorization-code-interception-and-permanent-api-access/
  - url: 'https://github.com/Envincion/CVE-2026-51954'
tags:
  - cve.org
  - exploit-available
exploits:
  github: 2
  githubRepos:
    - 'https://github.com/envincion1991-cmyk/CVE-2026-51954'
    - 'https://github.com/Envincion/CVE-2026-51954'
  checkedAt: '2026-10-22T22:01:26.493Z'
ingestedAt: '2026-10-22T22:00:50.340Z'
---

## Overview

An issue in Webasyst Framework 4.0.3 and before allows a remote attacker to execute arbitrary code via a crafted OAuth authorization URL with an arbitrary redirect_uri.

## Remediation

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