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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.

PUBLISHED Reserved 2026-01-11 | Published 2026-01-13 | Updated 2026-01-14 | Assigner VulnCheck




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Reliance on Cookies without Validation and Integrity Checking

Product status

Firmware version 03.05.10(17)
affected

Credits

Momen Eldawakhly (Cyber Guy) at Cypro AB finder

References

www.exploit-db.com/exploits/50793 (ExploitDB-50793) exploit

www.wago.com (Official Vendor Homepage) product

www.vulncheck.com/.../wago-pfc-g-eth-rs-privilege-escalation (VulnCheck Advisory: WAGO 750-8212 PFC200 G2 2ETH RS Privilege Escalation) third-party-advisory

cve.org (CVE-2022-50926)

nvd.nist.gov (CVE-2022-50926)

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