CVE-2020-11807

Public Exploit

Description

Because of Unrestricted Upload of a File with a Dangerous Type, Sourcefabric Newscoop 4.4.7 allows an authenticated user to execute arbitrary PHP code (and sometimes terminal commands) on a server by making an avatar update and then visiting the avatar file under the /images/ path.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/sourcefabric/Newscoop/blob/3df835637609a5a42530b2a4611177c634ad6274/newscoop/library/Newscoop/Image/ImageService.php#L226 third party advisory patch
https://gist.github.com/V-Rico/82e9e52ac451dc20eef87b0999b3b1ee third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-11807?
CVE-2020-11807 has been scored as a high severity vulnerability.
How to fix CVE-2020-11807?
To fix CVE-2020-11807, 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-2020-11807 being actively exploited in the wild?
It is possible that CVE-2020-11807 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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