4.3

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2025-46549

CVE-2025-46549: Yeswiki Vulnerable to Unauthenticated Reflected Cross-site Scripting

YesWiki is a wiki system written in PHP. Prior to version 4.5.4, an attacker can use a reflected cross-site scripting attack to steal cookies from an authenticated user by having them click on a malicious link. Stolen cookies allow the attacker to take over the user’s session. This vulnerability may also allow attackers to deface the website or embed malicious content. This issue has been patched in version 4.5.4.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2025-46549

CVE-2025-46549:

4.3

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

SSVC / BOD 26-04 ↗

Exploitation pocAutomatable NoTech Impact Partial

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Package Name	Ecosystem	Vulnerable Versions	First Patched Version
yeswiki/yeswiki	composer	<= 4.5.3	4.5.4

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability is a reflected XSS in the 'template' parameter. The provided commit 107d43056adebaa0c731230f9fd010898e88f3f5 shows a modification in the tools/bazar/actions/BazarListeAction.php file, specifically within the formatArguments method of the BazarListeAction class. The patch introduces htmlspecialchars() to sanitize the $template variable, which is derived from user input ($_GET['template']). This directly addresses the XSS vulnerability by ensuring that any HTML characters in the 'template' parameter are encoded, preventing script injection. Therefore, the BazarListeAction::formatArguments function was the vulnerable function as it processed the unsanitized user input before the patch.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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