CVE-2021-39348: The LearnPress WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient escaping on the $custom_profile parameter found in the ~/inc/admin/views/backend-user-profile.php file

medium Affects learnpress (WordPress plugin). Feed 2026.10.29.3, updated 2026-10-29; published 2021-10-21; advisory modified 2026-06-17.

The LearnPress WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient escaping on the $custom_profile parameter found in the ~/inc/admin/views/backend-user-profile.php file

Package: learnpress (WordPress plugin) WordPress
Affected versions: <=4.1.3.1
Fixed in: no fix recorded
Severity: medium CVSS 5.5
Exploitation: not on CISA KEV · EPSS 5% (92.5th percentile)
Published: 2021-10-21
Source: nvd

References

CWE-79 CWE-80

NVD record learnpress (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.

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