Description
The Highlighting Code Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.2.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
CVSS 4.4EPSS 0.208%Risk 0.45
View source- Published
- 2026-07-10 09:16:52
- Affected versions
- <=2.2.0
- Type
- Web application
- Vector
- CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N