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CVE-2021-24918: 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

medium Affects smash-balloon-social-post-feed (WordPress plugin). Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

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

Package
smash-balloon-social-post-feed (WordPress plugin) WordPress
Affected versions
<4.0.1
Fixed in
4.0.1
Severity
medium  CVSS 5.4
Exploitation
not on CISA KEV · EPSS 1% (52.1th percentile)
Published
2021-11-29
Source
nvd

References

CWE-79
NVD recordsmash-balloon-social-post-feed (WordPress plugin) advisories

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# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden wordpress /var/www/html

# or, without Composer
pipx install phpwarden   &&   phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

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