Bug 1894982 (CVE-2020-28039)

Summary:	CVE-2020-28039 wordpress: protected meta that could lead to arbitrary file deletion
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	fedora, kevin
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-11-05 14:21:30 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1894983, 1894984
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2020-11-05 14:18:39 UTC

is_protected_meta in wp-includes/meta.php in WordPress before 5.5.2 allows arbitrary file deletion because it does not properly determine whether a meta key is considered protected.

References:
https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/
https://wpscan.com/vulnerability/10452

Upstream patch:
https://github.com/WordPress/wordpress-develop/commit/d5ddd6d4be1bc9fd16b7796842e6fb26315705ad

Comment 1 Guilherme de Almeida Suckevicz 2020-11-05 14:18:58 UTC

Created wordpress tracking bugs for this issue:

Affects: epel-all [bug 1894984]
Affects: fedora-all [bug 1894983]

Comment 2 Product Security DevOps Team 2020-11-05 14:21:30 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.