CSRF in Fkrauthan Wp-Mpdf
CVE-2021-4416
The wp-mpdf plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.5.1. This is due to missing or incorrect nonce validation on the mpdf_admin_savepost() function. This makes it possible for unauthenticated attackers to save post data via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000
Affected products
- Fkrauthan Wp-Mpdf — versions 0
- Wp-Mpdf Project
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/threat-intel/vulnerabilities/id/c47386ee-25c8-4a77-92e8-5a82a… (Third Party Advisory)
- blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/ (Third Party Advisory)
- blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attack… (Third Party Advisory)
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-… (Third Party Advisory)
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-… (Third Party Advisory)
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-… (Third Party Advisory)
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-… (Third Party Advisory)
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-… (Third Party Advisory)
- plugins.trac.wordpress.org/changeset/2549363/wp-mpdf/trunk/wp-mpdf.php (Patch)
Frequently asked questions
- What is CVE-2021-4416?
- CVE-2021-4416 is a medium-severity vulnerability in Fkrauthan Wp-Mpdf, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2023-07-12.
- How severe is CVE-2021-4416?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2021-4416 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.