Golang
CVE-2022-50926
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V3 - Web Frontend Security Cookie integrity validation
|
| Impact | CVSS 9.8 (Critical). No auth (just modify cookies). PoC available. EPSS 0.10%. PLC compromise in industrial environments can affect physical processes. |
| Exploit ScenarioDerived | An operator modifies their browser cookie to set the admin role, gaining access to PLC configuration, program upload, and I/O forcing capabilities that can disrupt industrial processes. |
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Alert meAnalysisAIv1 – Mar 12, 2026
WAGO PFC200 G2 PLC (firmware affected) allows privilege escalation through cookie manipulation. Users can modify cookie values to gain admin privileges. PoC available.
Earlier versions of this analysis (1)
WAGO PFC200 PLC allows admin privilege escalation through session cookie manipulation.
RemediationAI
Apply firmware updates. Implement server-side session management with signed cookies.
Affected ProductsAI
WAGO 750-8212 PFC200 G2 2ETH RS
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
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.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
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.
Executive ViewAI
Organizations using WAGO 750-8212 PFC200 G2 2ETH RS firmware face critical risk from CVE-2022-50926 rated CVSS 9.8. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems. Proof-of-concept code is publicly available, increasing the risk of exploitation. Organizations should apply vendor updates immediately when available and implement compensating controls in the interim.
Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Exploit-DB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.
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GitHub PoC