Vulnerabilities / Books Gallery – Book Showcase, Library & Affiliate Plugin / WPSEC-2026-0857
Books Gallery – Book Showcase, Library & Affiliate Plugin <= 4.8.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Book Author Meta
Medium 6.4
CWE-79Fixed in 4.8.5
- ID
- WPSEC-2026-0857
- Plugin
- Books Gallery – Book Showcase, Library & Affiliate Plugin (wp-books-gallery)
- Affected
- all versions before 4.8.5
- Remediation
- Update to 4.8.5 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-10-13
- Attack surface
- Books Gallery – Book Showcase, Library & Affiliate Plugin on WPSec AttackSurface
- Fix released
- Published
Description
The Books Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the book author ('wbg_author') meta field in all versions up to, and including, 4.8.4 due to insufficient output escaping when the value is displayed in the admin Books list table. This makes it possible for authenticated attackers with contributor-level access and above, who can edit books, to inject arbitrary web scripts that will execute whenever an administrator views the Books list in the dashboard.
References
- https://wpsec.com/vuln/WPSEC-2026-0857/
- https://plugins.svn.wordpress.org/wp-books-gallery/tags/4.8.5/
- https://wordpress.org/plugins/wp-books-gallery/
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