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CVE-2024-4943: The Blocksy theme for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘has_field_link_rel’ parameter in all versions up to, and including, 2.0.46 due to insufficient input sanitization

medium Affects blocksy (WordPress theme). Feed 2026.10.29.3, updated 2026-10-29; published ; advisory modified .

The Blocksy theme for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘has_field_link_rel’ parameter in all versions up to, and including, 2.0.46 due to insufficient input sanitization

Package
blocksy (WordPress theme) WordPress
Affected versions
<2.0.47
Fixed in
2.0.47
Severity
medium  CVSS 6.4
Exploitation
not on CISA KEV · EPSS 0% (18.2th percentile)
Published
2024-05-21
Source
nvd

References

CWE-79
NVD recordblocksy (WordPress theme) 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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