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CVE-2024-3961

MEDIUM 5.3 CVSS 3.1
Published
June 21, 2024
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Description

The ConvertKit – Email Newsletter, Email Marketing, Subscribers and Landing Pages plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the tag_subscriber function in all versions up to, and including, 2.4.9. This makes it possible for unauthenticated attackers to subscribe users to tags. Financial damages may occur to site owners if their API quota is exceeded.

Affected products and versions

  • convertkit Kit (formerly ConvertKit) – Email Newsletter, Email Marketing, Membership, Subscribers and Landing Pages — Up to and including 2.4.9
  • convertkit convertkit_-_email_marketing\,_email_newsletter_and_landing_pages — Up to and including 2.4.9
  • convertkit convertkit_-_email_marketing\,_email_newsletter_and_landing_pages — Before 2.4.9.1

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3104932%40convertkit%2Ftrunk&old=3085997%40convertkit%2Ftrunk&sfp_email=&sfph_mail= Product
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/79d828b8-aea2-4705-ae23-ac70133a6c3e?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record