CVE-2021-24252 Event Banner <= 1.3 - Arbitrary File Upload to RCE
Admins can upload arbitrary executable files leading to remote code execution, or attackers can exploit CSRF/LFI vectors to achieve the same result.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-24252?
CVE-2021-24252 is a high-severity vulnerability in Unknown Event Banner, published on 5 May 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Event Banner WordPress plugin through 1.3 does not verify the uploaded image file, allowing admin accounts to upload arbitrary files, such as .exe, .php, or others executable, leading to RCE. Due to the lack of CSRF check, the issue can also be used via such vector to achieve the same result, or via a LFI as authorisation checks are missing (but would require WP to be loaded)
Weakness: CWE-434
Which versions are affected by CVE-2021-24252?
It affects 1 product.
Products include Wp-Eventmanager Event Banner.
How do I fix CVE-2021-24252?
No fix has been published for CVE-2021-24252 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-24252 being exploited?
There is no known exploitation of CVE-2021-24252 in the wild and no public exploit code.
Sources
Also known as GHSA-4r26-734p-358q.