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Golang CVE-2022-50926

CRITICAL
Reliance on Cookies without Validation and Integrity Checking (CWE-565)
2026-01-13 disclosure@vulncheck.com
Privilege Escalation Golang
9.8
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 14, 2026 - 16:25 vuln.today
Public exploit code
CVE Published
Jan 13, 2026 - 23:15 nvd
CRITICAL 9.8

DescriptionNVD

WAGO 750-8212 PFC200 G2 2ETH RS firmware contains a privilege escalation vulnerability that allows attackers to manipulate user session cookies. Attackers can modify the cookie's 'name' and 'roles' parameters to elevate from ordinary user to administrative privileges without authentication.

AnalysisAI

WAGO PFC200 G2 PLC (firmware affected) allows privilege escalation through cookie manipulation. Users can modify cookie values to gain admin privileges. PoC available.

Technical ContextAI

The session cookie contains name and roles values in a client-modifiable format (CWE-565). An ordinary user can edit their cookie to set roles=admin, gaining administrative access to the PLC.

Affected ProductsAI

WAGO 750-8212 PFC200 G2 2ETH RS

RemediationAI

Apply firmware updates. Implement server-side session management with signed cookies.

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CVE-2022-50926 vulnerability details – vuln.today
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