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Vulnerability record · CVE-2017-14521 · published 26 January 2018

CVE-2017-14521: Wondercms unrestricted file upload vulnerability

Wondercms · Wondercms

In WonderCMS 2.3.1, the upload functionality accepts random application extensions and leads to malicious File Upload.

8.8 CVSS 3.0 High EPSS 7.3% · top 5.8% CWE-434 · Unrestricted file upload
8.8CVSS 3.0 base score, v2 6.5
7.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

In WonderCMS 2.3.1, the upload functionality accepts random application extensions and leads to malicious File Upload.

CVSS:3.0/AV:N/AC:L/PR:L/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://securitywarrior9.blogspot.in/2018/01/vulnerability-in-wonder-cms-leading-to.html ExploitTechnical DescriptionThird Party Advisory
https://www.exploit-db.com/exploits/43963/ ExploitThird Party AdvisoryVDB Entry
https://securitywarrior9.blogspot.in/2018/01/vulnerability-in-wonder-cms-leading-to.html ExploitTechnical DescriptionThird Party Advisory
https://www.exploit-db.com/exploits/43963/ ExploitThird Party AdvisoryVDB Entry

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Related vulnerabilities

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

9.8CVE-2020-35314Wondercms os command injection vulnerabilityA remote code execution vulnerability in the installUpdateThemePluginAction function in index.php in WonderCMS 3.1.3, allows remote attackers to uplo…EPSS 27%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%analysed9.8CVE-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%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%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%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%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%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%

Source: NIST National Vulnerability Database (record CVE-2017-14521), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.