CVE-2020-25739

Description

An issue was discovered in the gon gem before gon-6.4.0 for Ruby. MultiJson does not honor the escape_mode parameter to escape fields as an XSS protection mechanism. To mitigate, json_dumper.rb in gon now does escaping for XSS by default without relying on MultiJson.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.46%
Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/gazay/gon/commit/fe3c7b2191a992386dc9edd37de5447a4e809bc7 third party advisory patch
https://lists.debian.org/debian-lts-announce/2020/09/msg00018.html third party advisory mailing list
https://usn.ubuntu.com/4560-1/ third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-25739?
CVE-2020-25739 has been scored as a medium severity vulnerability.
How to fix CVE-2020-25739?
To fix CVE-2020-25739, 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-2020-25739 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-25739 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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