CVE-2021-24354: A lack of capability checks and insufficient nonce check on the AJAX action in the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, made it possible for authenticated users to instal

high Affects simple-301-redirects (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

A lack of capability checks and insufficient nonce check on the AJAX action in the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, made it possible for authenticated users to instal

Package
simple-301-redirects (WordPress plugin) WordPress
Affected versions
>=2.0.0 and <2.0.4
Fixed in
2.0.4
Severity
high  CVSS 8.8
Exploitation
not on CISA KEV · EPSS 1% (73.8th percentile)
Published
2021-06-14
Source
nvd

References

CWE-862
NVD recordsimple-301-redirects (WordPress plugin) advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# 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.

Install docs   How findings are ranked

Related advisories