CVE-2024-3961 ConvertKit <= 2.4.9 - Missing Authorization
Unauthenticated attackers can subscribe users to tags, potentially causing financial damage via API quota exhaustion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-3961?
CVE-2024-3961 is a medium-severity missing authorization vulnerability in Kit (formerly ConvertKit) – Email Newsletter, Email Marketing, Membership, Subscribers and Landing Pages, published on 21 Jun 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2024-3961?
It affects 1 product.
Products include Convertkit Convertkit - Email Marketing\, Email Newsletter and Landing Pages.
How do I fix CVE-2024-3961?
No fix has been published for CVE-2024-3961 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2024-3961 being exploited?
There is no known exploitation of CVE-2024-3961 in the wild and no public exploit code.
Other vulnerabilities in Kit (formerly ConvertKit) – Email Newsletter, Email Marketing, Membership, Subscribers and Landing Pages
Sources
Also known as GHSA-x26g-933q-fggm.