e107 CMS 3.2.1 SVG File Parser news.php cross site scripting

Summaryinfo

A vulnerability was found in e107 CMS 3.2.1 and classified as problematic. This impacts an unknown function of the file news.php of the component SVG File Parser. The manipulation results in cross site scripting. This vulnerability is reported as CVE-2022-50905. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as problematic, was found in e107 CMS 3.2.1. Affected is an unknown code of the file news.php of the component SVG File Parser. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

e107 CMS version 3.2.1 contains multiple vulnerabilities that allow cross-site scripting (XSS) attacks. The first vulnerability is a reflected XSS that occurs in the news comment functionality when authenticated users interact with the comment form. An attacker can inject malicious JavaScript code through the URL parameter that gets executed when users click outside the comment field after typing content. The second vulnerability involves an upload restriction bypass for authenticated administrators, allowing them to upload SVG files containing malicious code through the media manager's remote URL upload feature. This results in stored XSS when the uploaded SVG files are accessed. These vulnerabilities were discovered by Hubert Wojciechowski and affect the news.php and image.php components of the CMS.

The weakness was disclosed by Hubert Wojciechowski as 50910. The advisory is shared for download at exploit-db.com. This vulnerability is traded as CVE-2022-50905 since 01/11/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.007.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:news.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (50910). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Content Management System

Vendor

• e107

Name

• CMS

Version

• 3.2.1

License

• open-source

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Once again VulDB remains the best source for vulnerability data.

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