CVE-2025-4577: medium-severity vulnerability in smub Smash Balloon Social Post Feed – Simple…
Smash Balloon Custom Facebook Feed <= 4.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via `data-color` Attribute
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.4epss 0.3%
The Smash Balloon Social Post Feed – Simple Social Feeds for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the data-color attribute in all versions up to, and including, 4.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Related CVEs — smub Smash Balloon Social Post Feed – Simple…
In the same product, most dangerous first.
CVE-2026-16775MEDIUMSmash Balloon Social Post Feed <= 4.9.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'id' Shortcode AttributeEPSS 0.3%CVE-2026-93756HIGHSmash Balloon Social Post Feed <= 4.13.0 - Unauthenticated Stored Cross-Site Scripting via Facebook Comment Message in Admin Builder PreviewEPSS 0.3%
References
https://plugins.trac.wordpress.org/browser/custom-facebook-feed/tags/4.3.0/assets/js/cff-scripts.js#L245https://plugins.trac.wordpress.org/browser/custom-facebook-feed/tags/4.3.0/assets/js/cff-scripts.js#L254https://www.wordfence.com/threat-intel/vulnerabilities/id/ec3de7e2-4a29-401f-af2c-0ce78d768eae?source=cve