CVE-2021-24357

5.4 mediumEPSS 0.6%

Medium (5.4) in fooplugins foogallery. EPSS 0.6% chance of exploitation in the next 30 days.

In the Best Image Gallery & Responsive Photo Gallery – FooGallery WordPress plugin before 2.0.35, the Custom CSS field of each gallery is not properly sanitised or validated before being being output in the page where the gallery is embed, leading to a stored Cross-Site Scripting issue.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-06-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

fooplugins:foogallery

References

https://wpscan.com/vulnerability/950f46ae-4476-4969-863a-0e55752953b3
https://wpscan.com/vulnerability/950f46ae-4476-4969-863a-0e55752953b3

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