CRITICAL

CVE-2023-31689

CVSS v3

9.8

CRITICAL

EPSS Score

20.2 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2023-31689 yet.

Full record on NVD

Description

In Wcms 0.3.2, an attacker can send a crafted request from a vulnerable web application backend server /wcms/wex/html.php via the finish parameter and the textAreaCode parameter. It can write arbitrary strings into custom file names and upload any files, and write malicious code to execute scripts to trigger command execution.

Technical details

Published: 2023-05-22

Frequently asked questions

What is CVE-2023-31689?

Is CVE-2023-31689 actively exploited?

Active exploitation of CVE-2023-31689 has not been confirmed. Its EPSS score was 20.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-31689?

CVE-2023-31689 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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