CVE-2021-24252

Public Exploit

Event Banner <= 1.3 - Arbitrary File Upload to RCE

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)

References

Link	Tags
https://wpscan.com/vulnerability/91e81c6d-f24d-4f87-bc13-746715af8f7c	exploit third party advisory
https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/Event%20Banner.md	broken link

Frequently Asked Questions

What is the severity of CVE-2021-24252?: CVE-2021-24252 has been scored as a high severity vulnerability.
How to fix CVE-2021-24252?: To fix CVE-2021-24252, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24252 being actively exploited in the wild?: It is possible that CVE-2021-24252 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24252?: CVE-2021-24252 affects Unknown Event Banner.

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Description

Category

CWE-434 – Unrestricted Upload of File with Dangerous Type

References

Frequently Asked Questions