CVE-2026-8873

Description

The Content Slideshow plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, and including, 2.4.1 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.

PUBLISHED Reserved 2026-05-18 | Published 2026-05-27 | Updated 2026-05-27 | Assigner Wordfence

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Timeline

Credits

Gilang Asra Bilhadi finder

References

www.wordfence.com/...-9fcb-481c-874e-0184609283fe?source=cve

plugins.trac.wordpress.org/...slideshow-widget-shortcode.php

plugins.trac.wordpress.org/...slideshow-widget-shortcode.php

cve.org (CVE-2026-8873)

nvd.nist.gov (CVE-2026-8873)

Download JSON