CVE-2026-22905

Authentication Bypass via URI Traversal

State: Published
Severity: 7.5 High
Published: Feb 9, 2026
Updated: Feb 9, 2026
Reserved: Jan 13, 2026

Description

An unauthenticated remote attacker can bypass authentication by exploiting insufficient URI validation and using path traversal sequences (e.g., /js/../cgi-bin/post.cgi), gaining unauthorized access to protected CGI endpoints and configuration downloads.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	CERTVDE

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
0852-1322WAGO	0.0.0 through 2.64Affected
0852-1328WAGO	0.0.0 through 2.64Affected
0852-1322WAGO	2.64Affected
0852-1328WAGO	2.64Affected

References

https://certvde.com/de/advisories/VDE-2026-004

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