CVE-2021-42194

Name: CVE-2021-42194
Creator: NVD / NIST
Published: 2022-03-20T22:15:07.88+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 1.05%

Last modified Jun 17, 2026

CVE-2021-42194 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. The wechat_return function in /controller/Index.php of EyouCms V1.5.4-UTF8-SP3 passes the user's input directly into the simplexml_ load_ String function, which itself does not prohibit external entities, triggering a XML external entity (XXE) injection vulnerability.. EPSS estimates a 1.05% chance of exploitation in the next 30 days.

Description

The wechat_return function in /controller/Index.php of EyouCms V1.5.4-UTF8-SP3 passes the user's input directly into the simplexml_ load_ String function, which itself does not prohibit external entities, triggering a XML external entity (XXE) injection vulnerability.

Metrics

CVSS 3.1

7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.05%

60.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-611

Affected Software

Vendor	Product	Versions
Eyoucms	Eyoucms	1.5.4

References

https://github.com/eyoucms/eyoucms/issues/19Exploit, Issue Tracking, Third Party Advisory
https://github.com/eyoucms/eyoucms/issues/19Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Mar 20, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42194?

How severe is CVE-2021-42194?

CVE-2021-42194 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42194?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-42194?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST