Bug 1848692 (CVE-2020-4049) - CVE-2020-4049 wordpress: authenticated self-XSS via theme uploads
Summary: CVE-2020-4049 wordpress: authenticated self-XSS via theme uploads
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-4049
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1848693 1848694
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-06-18 18:23 UTC by Guilherme de Almeida Suckevicz
Modified: 2020-06-18 23:20 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: 2020-06-18 23:20:37 UTC


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Description Guilherme de Almeida Suckevicz 2020-06-18 18:23:00 UTC
In affected versions of WordPress, when uploading themes, the name of the theme folder can be crafted in a way that could lead to JavaScript execution in /wp-admin on the themes page. This does require an admin to upload the theme, and is low severity self-XSS. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).

Reference:
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-87h4-phjv-rm6p

Upstream commit:
https://github.com/WordPress/wordpress-develop/commit/404f397b4012fd9d382e55bf7d206c1317f01148

Comment 1 Guilherme de Almeida Suckevicz 2020-06-18 18:23:19 UTC
Created wordpress tracking bugs for this issue:

Affects: epel-all [bug 1848694]
Affects: fedora-all [bug 1848693]

Comment 2 Product Security DevOps Team 2020-06-18 23:20:37 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.


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