CVE-2023-0556 ContentStudio <= 1.2.5 - Missing Authorization
Unauthenticated attackers can retrieve sensitive plugin tokens due to missing capability checks, enabling unauthorized interactions with the ContentStudio WordPress plugin.
- 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-2023-0556?
CVE-2023-0556 is a critical missing authorization vulnerability in ContentStudio, published on 27 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The ContentStudio plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on several functions in versions up to, and including, 1.2.5. This makes it possible for unauthenticated attackers to obtain the blog metadata (via the function cstu_get_metadata) that includes the plugin's contentstudio_token. Knowing this token allows for other interactions with the plugin such as creating posts in versions prior to 1.2.5, which added other requirements to posting and updating.
Weakness: CWE-862
Which versions are affected by CVE-2023-0556?
It affects 1 product.
Products include Contentstudio Contentstudio.
How do I fix CVE-2023-0556?
No fix has been published for CVE-2023-0556 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-2023-0556 being exploited?
There is no known exploitation of CVE-2023-0556 in the wild and no public exploit code.
Other vulnerabilities in ContentStudio
Sources
Also known as GHSA-h8vw-7x98-j7c4.