CVE-2021-24357
FooGallery < 2.0.35 - Authenticated Stored Cross-Site Scripting
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-24357- 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 - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
FooGallery < 2.0.35 - Authenticated Stored Cross-Site Scripting
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.
- Record
CVE-2021-24357- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11270 No score
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.
- Record
EUVD-2021-11270- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2q7g-6q23-mgp7 No score
In the Best Image Gallery & Responsive Photo Gallery – FooGallery WordPress plugin before 2.0...
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.
- Record
GHSA-2q7g-6q23-mgp7- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24357 is a medium vulnerability (CVSS 5.4) in Fooplugins Best Image Gallery & Responsive Photo Gallery – Foogallery, published June 14, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 50th percentile. No source names a fixed version.