CVE-2022-2823: Slider, Gallery, and Carousel by MetaSlider < 3.27.9 - Admin+ Stored Cross Site Scripting

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-10-10 · updated 2026-06-17
Weakness: CWE-79

Description

The Slider, Gallery, and Carousel by MetaSlider WordPress plugin before 3.27.9 does not sanitise and escape some of its Gallery Image parameters, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Affected products

metaslider Slider, Gallery, and Carousel by MetaSlider – Image Slider, Video Slider: before 3.27.9 — fixed in 3.27.9

How to fix

Upgrade to a fixed version: metaslider Slider, Gallery, and Carousel by MetaSlider – Image Slider, Video Slider 3.27.9. Check the vendor advisory for mitigations.

References

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