CVE-2021-24357 - CVE House
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Status published Medium CVE-2021-24357

FooGallery < 2.0.35 - Authenticated Stored Cross-Site Scripting

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • avolume

References

More from FooPlugins

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CVE-2023-44244
WordPress FooGallery Plugin <= 2.2.44 is vulnerable to Cross Site Scripting (XSS)
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CVE-2023-44233
WordPress FooGallery Plugin <= 2.2.44 is vulnerable to Cross Site Request Forgery (CSRF)
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CVE-2023-29439
WordPress FooGallery Plugin <= 2.2.35 is vulnerable to Cross Site Scripting (XSS)
High 7.1

Affected Vendor

Affected Software

Best Image Gallery & Responsive Photo Gallery – FooGallery
Vulnerable Versions:
2.0.35

Timeline

Official Publish: June 14th, 2021
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)

CWE-79

MITRE ATT&CK TTPs

T1189 Drive-by Compromise
Initial Access
T1059.007 JavaScript
Execution
T1539 Steal Web Session Cookie
Collection
T1213 Data from Information Repositories
Collection
T1567 Exfiltration Over Web Service
Exfiltration
T1491.001 Defacement
Impact