CVE-2026-51954

Unvalidated Redirect URI in Webasyst OAuth Enables Arbitrary Code Execution

Published Oct 22, 2026 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Description
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

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Unvalidated Redirect URI in Webasyst OAuth Enables Arbitrary Code Execution
Type Values Removed Values Added
Title Webasyst Framework Remote Code Execution via OAuth Redirect URI Manipulation
Weaknesses CWE-94
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-601
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

Type Values Removed Values Added
First Time appeared Webasyst
Webasyst webasyst-framework
Vendors & Products Webasyst
Webasyst webasyst-framework
Type Values Removed Values Added
Title Webasyst Framework Remote Code Execution via OAuth Redirect URI Manipulation
Weaknesses CWE-94
Type Values Removed Values Added
Description 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.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Nov 2, 2026, 7:00 PM
Reserved
Jun 8, 2026, 12:00 AM
Status
Deferred
Published
Oct 22, 2026, 4:17 PM
Modified
Nov 2, 2026, 7:18 PM