Bug 1793615 (CVE-2019-20042) - CVE-2019-20042 wordpress: XSS through wp_targeted_link_rel
Summary: CVE-2019-20042 wordpress: XSS through wp_targeted_link_rel
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2019-20042
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1793616 1793617
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-01-21 17:01 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-10-28 05:23 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2021-10-28 05:23:10 UTC

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Description Guilherme de Almeida Suckevicz 2020-01-21 17:01:48 UTC 
In wp-includes/formatting.php in WordPress 3.7 to 5.3.0, the function wp_targeted_link_rel() can be used in a particular way to result in a stored cross-site scripting (XSS) vulnerability. This has been patched in WordPress 5.3.1, along with all the previous WordPress versions from 3.7 to 5.3 via a minor release.

References:
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-xvg2-m2f4-83m7
https://hackerone.com/reports/509930

Upstream commit:
https://github.com/WordPress/wordpress-develop/commit/1f7f3f1f59567e2504f0fbebd51ccf004b3ccb1d
Comment 1 Guilherme de Almeida Suckevicz 2020-01-21 17:02:55 UTC 
Created wordpress tracking bugs for this issue:

Affects: epel-6 [bug 1793616]
Affects: epel-7 [bug 1793617]
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