Vulnerability CVE-2019-8942
Published: 2019-02-19   Modified: 2019-02-20

Description:
WordPress before 4.9.9 and 5.x before 5.0.1 allows remote code execution because an _wp_attached_file Post Meta entry can be changed to an arbitrary string, such as one ending with a .jpg?file.php substring. An attacker with author privileges can execute arbitrary code by uploading a crafted image containing PHP code in the Exif metadata. Exploitation can leverage CVE-2019-8943.

Type:

CWE-94

 (Improper Control of Generation of Code ('Code Injection'))

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.5/10
6.4/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Wordpress -> Wordpress 
Debian -> Debian linux 

 References:
http://packetstormsecurity.com/files/152396/WordPress-5.0.0-crop-image-Shell-Upload.html
http://www.rapid7.com/db/modules/exploit/multi/http/wp_crop_rce
http://www.securityfocus.com/bid/107088
https://blog.ripstech.com/2019/wordpress-image-remote-code-execution/
https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html
https://wpvulndb.com/vulnerabilities/9222
https://www.debian.org/security/2019/dsa-4401
https://www.exploit-db.com/exploits/46511/
https://www.exploit-db.com/exploits/46662/
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