PT-2021-16367 · WordPress · Smash Balloon Social Post Feed

Marc Montpas · Published 2021-11-29 · Updated 2026-04-18 · CVE-2021-24918

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Smash Balloon Social Post Feed WordPress plugin versions prior to 4.0.1

Description: The issue allows any logged-in user on a vulnerable site to update the plugin's settings without proper privilege or nonce validation. This enables the storage of rogue JavaScript on each of the site's posts and pages.

Recommendations: For Smash Balloon Social Post Feed WordPress plugin versions prior to 4.0.1, update to version 4.0.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the plugin's settings to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24918

Affected Products

Smash Balloon Social Post Feed

References · 6

• 🔥 https://jetpack.com/2021/10/29/security-issues-patched-in-smash-balloon-social-post-feed-plugin · Exploit
• https://osv.dev/vulnerability/CVE-2021-24918 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-24918 · Security Note
• https://twitter.com/ctiwatchcloud/status/2045326466125046262 · Twitter Post
• https://t.me/cibsecurity/33016 · Telegram Post
• https://wpscan.com/vulnerability/5d252ad7-bf28-44f3-8cd0-c4fe05c48f35 · Note