Cross-Site Scripting Vulnerability in PHP League CommonMark Library
CVE-2019-10010

6.1MEDIUM

Key Information:

Vendor

ThePHPleague

Status
Commonmark
Vendor
CVE Published:
24 March 2019

What is CVE-2019-10010?

A cross-site scripting vulnerability exists in the PHP League CommonMark library prior to version 0.18.3. This flaw allows remote attackers to inject unsafe links into HTML documents by exploiting double-encoded HTML entities that are not correctly escaped during rendering. As a result, attackers can potentially execute malicious scripts in the context of the user's browser. It is crucial for developers utilizing this library to upgrade to the latest version to mitigate the risk of exploitation.

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References

https://github.com/thephpleague/commonmark/issues/353
x_refsource_MISC
https://github.com/thephpleague/commonmark/releases/tag/0...
x_refsource_MISC

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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