Vulnerability record · CVE-2020-35314 · published 20 April 2021

CVE-2020-35314: Wondercms os command injection vulnerability

Wondercms · Wondercms

A remote code execution vulnerability in the installUpdateThemePluginAction function in index.php in WonderCMS 3.1.3, allows remote attackers to upload a custom plugin which can contain arbitrary code and obtain a webshell via the theme/plugin installer.

9.8 CVSS 3.1 Critical EPSS 27% · top 2.0% CWE-78 · OS command injection

9.8CVSS 3.1 base score, v2 7.5

27%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

8References, 6 tagged exploit

17 Jun 2026Last modified by NVD

Description

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.

Wondercms Wondercms

References

Link	Tags
https://github.com/robiso/wondercms	ProductThird Party Advisory
https://packetstormsecurity.com/files/160311/WonderCMS-3.1.3-Remote-Code-Execution.html	ExploitThird Party AdvisoryVDB Entry
https://zetc0de.github.io/post/authenticated-rce-ssrf-wondercms/	ExploitThird Party Advisory
https://zetc0de.github.io/post/authenticated-rce-ssrf-wondercms/#authenticated-remote-code-execution	ExploitThird Party Advisory
https://github.com/robiso/wondercms	ProductThird Party Advisory
https://packetstormsecurity.com/files/160311/WonderCMS-3.1.3-Remote-Code-Execution.html	ExploitThird Party AdvisoryVDB Entry
https://zetc0de.github.io/post/authenticated-rce-ssrf-wondercms/	ExploitThird Party Advisory
https://zetc0de.github.io/post/authenticated-rce-ssrf-wondercms/#authenticated-remote-code-execution	ExploitThird Party Advisory

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Related vulnerabilities

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

9.8CVE-2020-35313WonderCMS theme/plugin installer SSRF leading to remote code executionThe addCustomThemePluginRepository function in index.php in WonderCMS 3.1.3 performs server-side requests against an attacker-supplied URL without ad…EPSS 45%analysed20 Apr 2021 9.8CVE-2014-8704Wondercms path traversal vulnerabilityDirectory traversal vulnerability in index.php in Wonder CMS 2014 allows remote attackers to include and execute arbitrary local files via a crafted …EPSS 2.0%17 Mar 2017 9.8CVE-2014-8705Wondercms improper input validation vulnerabilityPHP remote file inclusion vulnerability in editInplace.php in Wonder CMS 2014 allows remote attackers to execute arbitrary PHP code via a URL in the …EPSS 1.5%17 Mar 2017 9.6CVE-2024-32340Wondercms cross-site scripting vulnerabilityA cross-site scripting (XSS) vulnerability in the Settings section of WonderCMS v3.4.3 allows attackers to execute arbitrary web scripts or HTML via …EPSS 0.71%17 Apr 2024 8.8CVE-2018-14387Wondercms vulnerabilityAn issue was discovered in WonderCMS before 2.5.2. An attacker can create a new session on a web application and record the associated session identi…EPSS 1.6%18 Jul 2018 8.8CVE-2017-14521Wondercms unrestricted file upload vulnerabilityIn WonderCMS 2.3.1, the upload functionality accepts random application extensions and leads to malicious File Upload.EPSS 7.3%26 Jan 2018 8.8CVE-2017-7951Wondercms cross-site request forgery vulnerabilityWonderCMS before 2.0.3 has CSRF because of lack of a token in an unspecified context.EPSS 0.57%21 Apr 2017 8.1CVE-2024-27561Wondercms server-side request forgery (ssrf) vulnerabilityA Server-Side Request Forgery (SSRF) in the installUpdateThemePluginAction function of WonderCMS v3.1.3 allows attackers to force the application to …EPSS 0.59%5 Mar 2024

Source: NIST National Vulnerability Database (record CVE-2020-35314), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.