Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wordpress | Wordpress | < 4.9.9 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/152396/WordPress-5.0.0-crop-image-Shell-UplExploitThird Party AdvisoryVDB Entry
- http://www.rapid7.com/db/modules/exploit/multi/http/wp_crop_rceExploitThird Party Advisory
- http://www.securityfocus.com/bid/107088Third Party AdvisoryVDB Entry
- https://blog.ripstech.com/2019/wordpress-image-remote-code-execution/ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00044.htmlExploitThird Party Advisory
- https://wpvulndb.com/vulnerabilities/9222Third Party Advisory
- https://www.debian.org/security/2019/dsa-4401Third Party Advisory
- https://www.exploit-db.com/exploits/46511/ExploitThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/46662/ExploitThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/152396/WordPress-5.0.0-crop-image-Shell-UplExploitThird Party AdvisoryVDB Entry
- http://www.rapid7.com/db/modules/exploit/multi/http/wp_crop_rceExploitThird Party Advisory
- http://www.securityfocus.com/bid/107088Third Party AdvisoryVDB Entry
- https://blog.ripstech.com/2019/wordpress-image-remote-code-execution/ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00044.htmlExploitThird Party Advisory
- https://wpvulndb.com/vulnerabilities/9222Third Party Advisory
FAQ
What is CVE-2019-8942?
CVE-2019-8942 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 sub...
How severe is CVE-2019-8942?
CVE-2019-8942 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-8942?
Check the references section above for vendor advisories and patch information. Affected products include: Wordpress Wordpress, Debian Debian Linux.