File disclosure via permissive cross-origin policy
Published Jun 16, 2025 · Updated Nov 21, 2025
Improper CORS handling in WAGO Device Manager allows remote attackers to read device files through a malicious website. The embedded manager accepts an untrusted web origin under an overly permissive cross-origin policy, allowing browser scripts to read server responses and reach a file-system endpoint. Exploitation requires an administrator to visit attacker-controlled JavaScript while the affected device is reachable from the administrator's browser; the reported consequence is file disclosure, not modification or service interruption.
Summary
What happened
Improper CORS handling in WAGO Device Manager allows remote attackers to read device files through a malicious website. The embedded manager accepts an untrusted web origin under an overly permissive cross-origin policy, allowing browser scripts to read server responses and reach a file-system endpoint. Exploitation requires an administrator to visit attacker-controlled JavaScript while the affected device is reachable from the administrator's browser; the reported consequence is file disclosure, not modification or service interruption.
The record
- CVE
- CVE-2025-25264
- Published
- Jun 16, 2025
- Updated
- Nov 21, 2025
- Vendor
- WAGO
- Product
- PFC200 Controller
- Classifications
- CWE-942, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 16, 2025CVE publishedPublication date reported by the CVE source.
- Nov 21, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.0.0 <04.07.01 (70)
- Affected versionversion=0.0.0 <04.07.01 (FW29)
- Affected versionversion=0.0.0 <3.10.11 (FW22 Patch 2)
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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