PT-2023-12528 · WordPress · Wp-Mpdf

Jerome Bruandet · Published 2023-07-12 · Updated 2023-07-18 · CVE-2021-4416

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions wp-mpdf plugin for WordPress versions up to, and including, 3.5.1

Description The issue is related to Cross-Site Request Forgery due to missing or incorrect nonce validation on the mpdf admin savepost() function. This allows unauthenticated attackers to save post data via a forged request if they can trick a site administrator into performing a specific action, such as clicking on a link.

Recommendations For wp-mpdf plugin for WordPress versions up to, and including, 3.5.1, update to a version higher than 3.5.1 to resolve the issue. As a temporary workaround, consider restricting access to the mpdf admin savepost() function until a patch is available.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2021-4416

Affected Products

Wp-Mpdf

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2021-4416 · Security Note
• https://osv.dev/vulnerability/CVE-2021-4416 · Vendor Advisory
• https://plugins.trac.wordpress.org/changeset/2549363/wp-mpdf/trunk/wp-mpdf.php · Patch
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4 · Note
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1 · Note
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/c47386ee-25c8-4a77-92e8-5a82afc9c826?source=cve · Note
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2 · Note
• https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks · Note
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5 · Note
• https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks · Note