CVE-2019-9787

Name	CVE-2019-9787
Description	WordPress before 5.1.1 does not properly filter comment content, leading to Remote Code Execution by unauthenticated users in a default configuration. This occurs because CSRF protection is mishandled, and because Search Engine Optimization of A elements is performed incorrectly, leading to XSS. The XSS results in administrative access, which allows arbitrary changes to .php files. This is related to wp-admin/includes/ajax-actions.php and wp-includes/comment.php.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-1742-1
Debian Bugs	924546

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
wordpress (PTS)	buster	5.0.15+dfsg1-0+deb10u1	fixed
	buster (security)	5.0.21+dfsg1-0+deb10u1	fixed
	bullseye (security), bullseye	5.7.8+dfsg1-0+deb11u2	fixed
	bookworm	6.1.1+dfsg1-1	fixed
	trixie	6.5+dfsg1-1	fixed
	sid	6.5.2+dfsg1-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
wordpress	source	jessie	4.1.26+dfsg-1+deb8u1	DLA-1742-1
wordpress	source	stretch	4.7.5+dfsg-2+deb9u6
wordpress	source	buster	5.0.4+dfsg1-1
wordpress	source	(unstable)	5.1.1+dfsg1-1		924546

Notes

https://blog.ripstech.com/2019/wordpress-csrf-to-rce/
Fixed by: https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080b