phpwarden
FeaturesComparePricingAdvisoriesBlogDocsChangelogLog in
Log inStart free

CVE-2021-24322: The Database Backup for WordPress plugin before 2.4 did not escape the backup_recipient POST parameter in before output it back in the attribute of an HTML tag, leading to a Stored Cross-Site Scriptin

medium Affects database-backup (WordPress plugin). Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

The Database Backup for WordPress plugin before 2.4 did not escape the backup_recipient POST parameter in before output it back in the attribute of an HTML tag, leading to a Stored Cross-Site Scriptin

Package
database-backup (WordPress plugin) WordPress
Affected versions
<2.4
Fixed in
2.4
Severity
medium  CVSS 5.4
Exploitation
not on CISA KEV · EPSS 1% (53.2th percentile)
Published
2021-06-01
Source
nvd

References

CWE-79
NVD recorddatabase-backup (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