Threat intelligence

Smash Balloon Custom Facebook Feed <= 4.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via `data-color` Attribute

CVE-2025-4577 · custom-facebook-feed

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Custom Facebook Feed at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Smash Balloon Custom Facebook Feed <= 4.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via `data-color` Attribute
Affected software: custom-facebook-feed(Plugin)
Affected versions: ≤ 4.3.1
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2025-4577
Published: 9 June 2025
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory ec3de7e2-4a29-401f-af2c-0ce78d768eae). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Custom Facebook Feed version against this catalog when the Defence plugin is connected to your WordPress site.

Start SiteRespond Defence for WordPress — £29.99/monthScan your website

All Custom Facebook Feed advisoriesBack to catalog