Is CVE-2021-42194 actively exploited?

No active exploitation of CVE-2021-42194 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-42194 be exploited remotely?

Yes. CVE-2021-42194 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-42194?

CVE-2021-42194 has a CVSS score of 7.2 (HIGH).

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HIGH

CVE-2021-42194

CWE-611Published: March 20, 2022· Updated: Jun 17, 2026

7.2

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2021-42194 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.