CVE-2009-3890

Name	CVE-2009-3890
Description	Unrestricted file upload vulnerability in the wp_check_filetype function in wp-includes/functions.php in WordPress before 2.8.6, when a certain configuration of the mod_mime module in the Apache HTTP Server is enabled, allows remote authenticated users to execute arbitrary code by posting an attachment with a multiple-extension filename, and then accessing this attachment via a direct request to a wp-content/uploads/ pathname, as demonstrated by a .php.jpg filename.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
wordpress (PTS)	jessie, jessie (lts)	4.1.35+dfsg-0+deb8u1	fixed
	stretch (security), stretch (lts), stretch	4.7.23+dfsg-0+deb9u1	fixed
	buster (security), buster, buster (lts)	5.0.21+dfsg1-0+deb10u1	fixed
	bullseye (security), bullseye	5.7.11+dfsg1-0+deb11u1	fixed
	bookworm (security), bookworm	6.1.6+dfsg1-0+deb12u1	fixed
	sid, trixie	6.6.1+dfsg1-1	fixed

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

Package	Type	Release	Fixed Version	Urgency
wordpress	source	etch	(not affected)
wordpress	source	lenny	(not affected)
wordpress	source	(unstable)	2.8.6-1	low

[etch] - wordpress <not-affected> (Vulnerable code not present)
[lenny] - wordpress <not-affected> (Vulnerable code not present)