CVE-2019-10010

Public Exploit

Description

Cross-site scripting (XSS) vulnerability in the PHP League CommonMark library before 0.18.3 allows remote attackers to insert unsafe links into HTML by using double-encoded HTML entities that are not properly escaped during rendering, a different vulnerability than CVE-2018-20583.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.23%
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/thephpleague/commonmark/issues/353 patch exploit third party advisory issue tracking
https://github.com/thephpleague/commonmark/releases/tag/0.18.3 third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2019-10010?
CVE-2019-10010 has been scored as a medium severity vulnerability.
How to fix CVE-2019-10010?
To fix CVE-2019-10010, 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-2019-10010 being actively exploited in the wild?
It is possible that CVE-2019-10010 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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