myshouts-shoutbox CVE-2025-58916
HIGHSeverity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Reflected XSS with user interaction required; network-accessible, no privileges, scope change to user's browser.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Munzir Author: Munzir myshouts-shoutbox allows Reflected XSS.This issue affects Author: Munzir: from n/a through <= 0.9.
AnalysisAI
Reflected Cross-Site Scripting (XSS) in the Munzir myshouts-shoutbox WordPress plugin (versions ≤ 0.9) allows unauthenticated attackers to inject and execute arbitrary web scripts in a victim’s browser by tricking them into clicking a crafted link. The vulnerability arises from improper neutralization of user input during web page generation, enabling script execution in the context of the affected site. No active exploitation or public exploit code has been identified, and EPSS indicates a low probability of real-world exploitation (0.03%).
Technical ContextAI
This vulnerability is a classic reflected XSS (CWE-79) in a PHP-based WordPress plugin. The myshouts-shoutbox plugin likely fails to sanitize user-supplied data (e.g., shout messages) before rendering it in HTML output. According to the CPE, all plugin versions up to 0.9 are affected. Reflected XSS requires an attacker to deliver a malicious URL to a victim; when the victim clicks it, the server embeds the injected script in the response, which the browser then executes, leading to client-side compromise.
Affected ProductsAI
The Munzir myshouts-shoutbox WordPress plugin, all versions from n/a through 0.9, is affected. The CPE for this plugin has not been provided, but the vendor advisory from Patchstack confirms the vulnerability: https://patchstack.com/database/Wordpress/Plugin/myshouts-shoutbox/vulnerability/wordpress-author-munzir-plugin-0-9-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve.
RemediationAI
No vendor-released patch has been identified at the time of analysis. As an immediate compensating control, site administrators should consider deactivating the myshouts-shoutbox plugin until a secure version is released. Web Application Firewall (WAF) rules can be configured to filter XSS patterns targeting the vulnerable endpoints, although this may not cover all attack vectors. Users are strongly advised to avoid clicking untrusted links that appear to interact with the plugin’s functionality. Monitor the plugin’s repository and the provided Patchstack advisory for any forthcoming updates.
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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