WordPress security changelog
MEDIUM CVE-2021-24918 Modified

Smash Balloon Social Post Feed: A security weakness

Smash Balloon Social Post Feed is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.

CVE / CNA score 5.4 CVSS · contact@wpscan.com
NVD score 5.4 CVSS 3.1 · nvd@nist.gov
Component
Smash Balloon Social Post Feed
Plugin slug
smash-balloon-social-post-feed
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Nov 29, 2021
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Nov 29, 2021 and is one of 4 known issues for this plugin.

Update, patch or deactivate.

Update Smash Balloon Social Post Feed to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The Smash Balloon Social Post Feed WordPress plugin before 4.0.1 did not have any privilege or nonce validation before saving the plugin's setting. As a result, any logged-in user on a vulnerable site could update the settings and store rogue JavaScript on each of its posts and pages.

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

Primary and upstream sources