CVE-2022-45139 | WAGO: Origin validation error through CORS misconfiguration

A CORS Misconfiguration in the web-based management allows a malicious third party webserver to misuse all basic information pages on the webserver. In combination with CVE-2022-45138 this could lead to disclosure of device information like CPU diagnostics. As there is just a limited amount of information readable the impact only affects a small subset of confidentiality.

Published: 2023-02-27 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2022-45139 is rated Low Risk (34.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.17%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-45139

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-14 0.06% 0.17% +0.11%
2 2025-11-22 0.05% 0.06% +0.01%
3 2025-11-21 0.05%

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-45139

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 1.4 [email protected]

Weakness enumeration for CVE-2022-45139

Affected software / configurations for CVE-2022-45139

Vendor Product Version Raw CPE
wago 751-9301_firmware >= 16, < 22 cpe:2.3:o:wago:751-9301_firmware:*:*:*:*:*:*:*:*
wago 751-9301_firmware 22 cpe:2.3:o:wago:751-9301_firmware:22:-:*:*:*:*:*:*
wago 751-9301_firmware 23 cpe:2.3:o:wago:751-9301_firmware:23:*:*:*:*:*:*:*
wago 752-8303\/8000-002_firmware >= 18, < 22 cpe:2.3:o:wago:752-8303\/8000-002_firmware:*:*:*:*:*:*:*:*
wago 752-8303\/8000-002_firmware 22 cpe:2.3:o:wago:752-8303\/8000-002_firmware:22:-:*:*:*:*:*:*
wago 752-8303\/8000-002_firmware 23 cpe:2.3:o:wago:752-8303\/8000-002_firmware:23:*:*:*:*:*:*:*
wago pfc100_firmware >= 16, < 22 cpe:2.3:o:wago:pfc100_firmware:*:*:*:*:*:*:*:*
wago pfc100_firmware 22 cpe:2.3:o:wago:pfc100_firmware:22:-:*:*:*:*:*:*
wago pfc100_firmware 23 cpe:2.3:o:wago:pfc100_firmware:23:*:*:*:*:*:*:*
wago pfc200_firmware >= 16, < 22 cpe:2.3:o:wago:pfc200_firmware:*:*:*:*:*:*:*:*
wago pfc200_firmware 22 cpe:2.3:o:wago:pfc200_firmware:22:-:*:*:*:*:*:*
wago pfc200_firmware 23 cpe:2.3:o:wago:pfc200_firmware:23:*:*:*:*:*:*:*
wago touch_panel_600_advanced_firmware >= 16, < 22 cpe:2.3:o:wago:touch_panel_600_advanced_firmware:*:*:*:*:*:*:*:*
wago touch_panel_600_advanced_firmware 22 cpe:2.3:o:wago:touch_panel_600_advanced_firmware:22:-:*:*:*:*:*:*
wago touch_panel_600_advanced_firmware 23 cpe:2.3:o:wago:touch_panel_600_advanced_firmware:23:*:*:*:*:*:*:*
wago touch_panel_600_marine_firmware >= 16, < 22 cpe:2.3:o:wago:touch_panel_600_marine_firmware:*:*:*:*:*:*:*:*
wago touch_panel_600_marine_firmware 22 cpe:2.3:o:wago:touch_panel_600_marine_firmware:22:-:*:*:*:*:*:*
wago touch_panel_600_marine_firmware 23 cpe:2.3:o:wago:touch_panel_600_marine_firmware:23:*:*:*:*:*:*:*
wago touch_panel_600_standard_firmware >= 16, < 22 cpe:2.3:o:wago:touch_panel_600_standard_firmware:*:*:*:*:*:*:*:*
wago touch_panel_600_standard_firmware 22 cpe:2.3:o:wago:touch_panel_600_standard_firmware:22:-:*:*:*:*:*:*
wago touch_panel_600_standard_firmware 23 cpe:2.3:o:wago:touch_panel_600_standard_firmware:23:*:*:*:*:*:*:*

References for CVE-2022-45139

URL Tags
https://cert.vde.com/en/advisories/VDE-2022-060/ Third Party Advisory
cvelogic Threat Intelligence