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Vulnerability record · CVE-2023-31689 · published 22 May 2023

CVE-2023-31689: Wcms unrestricted file upload vulnerability

Wcms · Wcms

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.

9.8 CVSS 3.1 Critical EPSS 20% · top 2.6% CWE-434 · Unrestricted file upload
9.8CVSS 3.1 base score
20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by 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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/vedees/wcms/issues/15 ExploitIssue Tracking
https://github.com/vedees/wcms/issues/15 ExploitIssue Tracking

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-19902Wcms path traversal vulnerabilityDirectory Traversal vulnerability found in Cryptoprof WCMS v.0.3.2 allows a remote attacker to execute arbitrary code via the wex/cssjs.php parameter.EPSS 1.9%8.8CVE-2019-11377Wcms unrestricted file upload vulnerabilitywcms/wex/finder/action.php in WCMS v0.3.2 has a Arbitrary File Upload Vulnerability via developer/finder because .php is a valid extension according …EPSS 1.7%8.6CVE-2020-24136Wcms path traversal vulnerabilityDirectory traversal in Wcms 0.3.2 allows an attacker to read arbitrary files on the server that is running an application via the pagename parameter …EPSS 2.2%8.3CVE-2020-24139Wcms server-side request forgery (ssrf) vulnerabilityServer-side request forgery in Wcms 0.3.2 lets an attacker send crafted requests from the back-end server of a vulnerable web application via the pat…EPSS 1.1%8.3CVE-2020-24140Wcms server-side request forgery (ssrf) vulnerabilityServer-side request forgery in Wcms 0.3.2 let an attacker send crafted requests from the back-end server of a vulnerable web application via the page…EPSS 1.2%8.1CVE-2019-14240Wcms path traversal vulnerabilityWCMS v0.3.2 has a CSRF vulnerability, with resultant directory traversal, to modify index.html via the /wex/html.php?finish=../index.html URI.EPSS 0.84%6.9CVE-2025-3800Wcms injection vulnerabilityA vulnerability has been found in WCMS 11 and classified as critical. Affected by this vulnerability is an unknown functionality of the file app/cont…EPSS 0.65%6.9CVE-2025-3799Wcms injection vulnerabilityA vulnerability, which was classified as critical, was found in WCMS 11. Affected is an unknown function of the file app/controllers/AnonymousControl…EPSS 0.52%

Source: NIST National Vulnerability Database (record CVE-2023-31689), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.