CVE-2019-8942

HIGH severity · CVSS 8.8 · Unrestricted file upload

8.8CVSS HIGH

Summary

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.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredLow

User interactionNone

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)93%

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products we track (1)

WordPress

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Additional information

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