CVE-2021-46872

Description

An issue was discovered in Nim before 1.6.2. The RST module of the Nim language stdlib, as used in NimForum and other products, permits the javascript: URI scheme and thus can lead to XSS in some applications. (Nim versions 1.6.2 and later are fixed; there may be backports of the fix to some earlier versions. NimForum 2.2.0 is fixed.)

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.51%
Vendor Advisory nim-lang.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/nim-lang/nimforum third party advisory
https://forum.nim-lang.org/t/8852 vendor advisory issue tracking
https://github.com/nim-lang/Nim/pull/19134 third party advisory patch
https://github.com/nim-lang/Nim/compare/v1.6.0...v1.6.2 third party advisory
https://github.com/nim-lang/Nim/commit/46275126b89218e64844eee169e8ced05dd0e2d7 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-46872?
CVE-2021-46872 has been scored as a medium severity vulnerability.
How to fix CVE-2021-46872?
To fix CVE-2021-46872, 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-2021-46872 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-46872 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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