Cotonti 1.0.0 modules/pfs/inc/pfs.main htmlspecialchars cross site scripting

Summaryinfo

A vulnerability classified as problematic has been found in Cotonti 1.0.0. This issue affects the function htmlspecialchars of the file modules/pfs/inc/pfs.main. Performing a manipulation results in cross site scripting. This vulnerability is cataloged as CVE-2026-55746. It is possible to initiate the attack remotely. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Cotonti 1.0.0. This affects the function htmlspecialchars of the file modules/pfs/inc/pfs.main. 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. The summary by CVE is:

Cotonti 1.0.0 (master branch, commit f43f1fc3) is vulnerable to stored Cross-Site Scripting in the Personal File Storage (PFS) module. A folder title (pff_title) is imported with the 'TXT' filter, which does not strip or encode HTML (the tag check in cot_import is disabled), so an authenticated user can store HTML/JavaScript in a folder title. In modules/pfs/inc/pfs.main.php the title is assigned to the template variable PFF_ROW_TITLE without htmlspecialchars(), and modules/pfs/tpl/pfs.tpl outputs {PFF_ROW_TITLE} unescaped. When the folder listing is viewed (including by other users for public folders), the injected script executes in the victim's browser.

The weakness was shared by Saidakbarxon Maxsudxonov. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-55746 since 06/17/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-37858). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• Cotonti

Version

• 1.0.0

Website

• Product: https://github.com/Cotonti/Cotonti/

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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