CVE-2025-13857

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.

CVSS 3.1

6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2025-12-06

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

References

• https://plugins.trac.wordpress.org/browser/yet-another-webclap-for-wordpress/tags/0.2/yawebclap.php#L28
• https://plugins.trac.wordpress.org/browser/yet-another-webclap-for-wordpress/trunk/yawebclap.php#L28
• https://www.wordfence.com/threat-intel/vulnerabilities/id/ca50e5e7-be46-40f1-9782-a72ca8ab7e9a?source=cve

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