CVE-2018-20148
First published: Fri Dec 14 2018(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/wordpress | 5.0.15+dfsg1-0+deb10u1 5.0.19+dfsg1-0+deb10u1 5.7.8+dfsg1-0+deb11u2 6.1.1+dfsg1-1 6.3.1+dfsg1-1 | |
| WordPress | <4.9.9 | |
| WordPress | >=5.0<5.0.1 | |
| Debian Linux | =8.0 | |
| Debian Linux | =9.0 |
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Reference Links
- https://wordpress.org/news/2018/12/wordpress-5-0-1-security-release/
- https://security-tracker.debian.org/tracker/CVE-2018-20148
- http://www.securityfocus.com/bid/106220
- https://blog.secarma.co.uk/labs/near-phar-dangerous-unserialization-wherever-you-are
- https://codex.wordpress.org/Version_4.9.9
- https://lists.debian.org/debian-lts-announce/2019/02/msg00019.html
- https://wordpress.org/support/wordpress-version/version-5-0-1/
- https://wpvulndb.com/vulnerabilities/9171
- https://www.debian.org/security/2019/dsa-4401
- https://www.zdnet.com/article/wordpress-plugs-bug-that-led-to-google-indexing-some-user-passwords/
- https://www.zdnet.com/article/wordpress-vulnerability-affects-a-third-of-most-popular-websites-online/
Frequently Asked Questions
What is the severity of CVE-2018-20148?
CVE-2018-20148 has been classified as a medium severity vulnerability.
How do I fix CVE-2018-20148?
To fix CVE-2018-20148, update WordPress to version 5.0.1 or later.
Which versions of WordPress are affected by CVE-2018-20148?
CVE-2018-20148 affects WordPress versions prior to 4.9.9 and from 5.0 to 5.0.1.
What types of attacks are possible due to CVE-2018-20148?
CVE-2018-20148 allows for PHP object injection attacks through crafted metadata in XMLRPC calls.
What component of WordPress is vulnerable in CVE-2018-20148?
The vulnerability in CVE-2018-20148 is related to the wp_get_attachment_thumb_file function in wp-includes/post.php.
- collector/security-tracker-debian
- agent/type
- agent/author
- agent/references
- agent/severity
- agent/weakness
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/wordpress
- canonical/wordpress
- version/wordpress/5.0
- vendor/debian
- canonical/debian linux
- version/debian linux/8.0
- version/debian linux/9.0