CVE-2025-13857
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-06

Last updated on: 2025-12-08

Assigner: Wordfence

Description
The Yet Another WebClap for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'text' parameter of the webclap_button shortcode in all versions up to, and including, 0.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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Meta Information
Published
2025-12-06
Last Modified
2025-12-08
Generated
2026-06-16
AI Q&A
2025-12-06
EPSS Evaluated
2026-06-15
NVD
CVE-2025-13857
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wordfence yet_another_webclap_for_wordpress 0.2
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
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.
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Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the Yet Another WebClap for WordPress plugin. It occurs via the 'text' parameter of the webclap_button shortcode in versions up to 0.2. Because the plugin does not properly sanitize or escape input, authenticated users with Contributor-level access or higher can inject malicious scripts that execute whenever someone views the affected page.

Impact Analysis

The vulnerability allows attackers with Contributor-level access to inject arbitrary scripts into web pages, which can lead to unauthorized actions such as stealing user credentials, hijacking user sessions, defacing websites, or spreading malware to visitors. This compromises the security and integrity of the affected WordPress site and its users.

Mitigation Strategies

To mitigate this vulnerability, immediately update the Yet Another WebClap for WordPress plugin to a version later than 0.2 where the issue is fixed, or disable the plugin if an update is not available. Additionally, restrict Contributor-level access to trusted users only, as the vulnerability requires authenticated Contributor-level access or higher to exploit.

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