CVE-2024-8324: XO Slider <= 3.8.6 - Authenticated (Contributor+) Stored Cross-Site Scripting

Severity: medium (CVSS 6.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-01 · updated 2026-06-17
Weakness: CWE-79

Description

The XO Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘get_slider’ function in all versions up to, and including, 3.8.6 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.

Affected products

ishitaka XO Slider: through 3.8.6

References

https://plugins.trac.wordpress.org/browser/xo-liteslider/tags/3.8.6/inc/class-xo-slider.php#L247
https://plugins.trac.wordpress.org/browser/xo-liteslider/tags/3.8.6/inc/class-xo-slider.php#L315
https://www.wordfence.com/threat-intel/vulnerabilities/id/be51c54d-b0f7-42b2-b9b3-1b5832e10a6b?source=cve

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