CVE-2021-33199

Description

In Expression Engine before 6.0.3, addonIcon in Addons/file/mod.file.php relies on the untrusted input value of input->get('file') instead of the fixed file names of icon.png and icon.svg.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.43%
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/ExpressionEngine/ExpressionEngine/releases/tag/6.0.3 third party advisory release notes
https://github.com/ExpressionEngine/ExpressionEngine/compare/6.0.1...6.0.3#diff-17bcb23e5666fc2dccb79c7133e9eeb701847f67ae84fbde0a673c3fd3d109e0R508 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-33199?
CVE-2021-33199 has been scored as a critical severity vulnerability.
How to fix CVE-2021-33199?
To fix CVE-2021-33199, 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-2021-33199 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-33199 is being actively exploited. 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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