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Vulnerability record · CVE-2022-50926 · published 13 January 2026

CVE-2022-50926: Reliance on cookies without validation vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.55% · top 56.1% CWE-565 · Reliance on cookies without validation Deferred
8.7CVSS 4.0 base score
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://www.exploit-db.com/exploits/50793
https://www.vulncheck.com/advisories/wago-pfc-g-eth-rs-privilege-escalation
https://www.wago.com

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2026-0257PAN-OS GlobalProtect authentication bypass via unvalidated cookiesPAN-OS GlobalProtect portal and gateway contain authentication bypass flaws that let an attacker skip security restrictions and establish an unauthor…KEVEPSS 96%analysed

Source: NIST National Vulnerability Database (record CVE-2022-50926), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.