Description
The Alpha Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘alpha_block_css’ parameter in all versions up to, and including, 1.5.0 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.
Problem types
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Product status
* (semver)
Timeline
| 2025-12-13: | Discovered |
| 2026-01-23: | Disclosed |
Credits
Athiwat Tiprasaharn
References
www.wordfence.com/...-1c52-4ac7-9ac6-033770282a3b?source=cve
plugins.trac.wordpress.org/...0/class/block_inline_style.php