Vulnerability Description
In WordPress before 4.9.9 and 5.x before 5.0.1, contributors could conduct PHP object injection attacks via crafted metadata in a wp.getMediaItem XMLRPC call. This is caused by mishandling of serialized data at phar:// URLs in the wp_get_attachment_thumb_file function in wp-includes/post.php.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wordpress | Wordpress | < 4.9.9 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/106220Third Party AdvisoryVDB Entry
- https://blog.secarma.co.uk/labs/near-phar-dangerous-unserialization-wherever-youExploitThird Party Advisory
- https://codex.wordpress.org/Version_4.9.9ProductVendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00019.htmlMailing ListThird Party Advisory
- https://wordpress.org/news/2018/12/wordpress-5-0-1-security-release/Release NotesVendor Advisory
- https://wordpress.org/support/wordpress-version/version-5-0-1/Release NotesVendor Advisory
- https://wpvulndb.com/vulnerabilities/9171Vendor Advisory
- https://www.debian.org/security/2019/dsa-4401Third Party Advisory
- https://www.zdnet.com/article/wordpress-plugs-bug-that-led-to-google-indexing-soPress/Media CoverageThird Party Advisory
- https://www.zdnet.com/article/wordpress-vulnerability-affects-a-third-of-most-poPress/Media CoverageThird Party Advisory
- http://www.securityfocus.com/bid/106220Third Party AdvisoryVDB Entry
- https://blog.secarma.co.uk/labs/near-phar-dangerous-unserialization-wherever-youExploitThird Party Advisory
- https://codex.wordpress.org/Version_4.9.9ProductVendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00019.htmlMailing ListThird Party Advisory
- https://wordpress.org/news/2018/12/wordpress-5-0-1-security-release/Release NotesVendor Advisory
FAQ
What is CVE-2018-20148?
CVE-2018-20148 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In WordPress before 4.9.9 and 5.x before 5.0.1, contributors could conduct PHP object injection attacks via crafted metadata in a wp.getMediaItem XMLRPC call. This is caused by mishandling of serializ...
How severe is CVE-2018-20148?
CVE-2018-20148 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2018-20148?
Check the references section above for vendor advisories and patch information. Affected products include: Wordpress Wordpress, Debian Debian Linux.