CSRF in Endortrails Sell Media
CVE-2021-4420
The Sell Media plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.5.5. This is due to missing or incorrect nonce validation on the sell_media_process() function. This makes it possible for unauthenticated attackers to sell media paypal orders 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 (31.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.2% 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
- Endortrails Sell Media — versions 0
- Graphpaperpress Sell Media
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/threat-intel/vulnerabilities/id/da4592b6-5e84-4a89-9ade-6cc22… (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 (Patch)
Frequently asked questions
- What is CVE-2021-4420?
- CVE-2021-4420 is a medium-severity vulnerability in Endortrails Sell Media, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2023-07-12.
- How severe is CVE-2021-4420?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2021-4420 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.