CVE-2026-16775

Smash Balloon Social Post Feed <= 4.9.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'id' Shortcode Attribute

6.4 Medium

The Smash Balloon Social Post Feed – Simple Social Feeds for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'id' Shortcode Attribute in all versions up to, and including, 4.9.0 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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.33%Up 0.1 points since Aug 16, 2026

What each source reports

CVE List Score used 6.4

Smash Balloon Social Post Feed <= 4.9.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'id' Shortcode Attribute

Record: CVE-2026-16775
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2026-59901 6.4

Record: EUVD-2026-59901
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-g8j2-ph9r-rqvm 6.4

The Smash Balloon Social Post Feed – Simple Social Feeds for WordPress plugin for WordPress is...

Record: GHSA-g8j2-ph9r-rqvm
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

NVD 6.4

Record: CVE-2026-16775
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

smub smash balloon social post feed – simple social feeds for wordpress

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-16775 is a medium vulnerability (CVSS 6.4) in Smub Smash Balloon Social Post Feed – Simple Social Feeds For Wordpress, published August 16, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile. No source names a fixed version.