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CVE-2018-20148

Date: December 14, 2018

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.

Language: PHP

Severity Score

Related Resources (14)

https://www.zdnet.com/article/wordpress-plugs-bug-that-led-to-google-indexing-some-user-passwords/
http://www.securityfocus.com/bid/106220
https://www.zdnet.com/article/wordpress-vulnerability-affects-a-third-of-most-popular-websites-online/
https://wordpress.org/news/2018/12/wordpress-5-0-1-security-release/
https://lists.debian.org/debian-lts-announce/2019/02/msg00019.html
https://www.debian.org/security/2019/dsa-4401
https://codex.wordpress.org/Version_4.9.9
https://wordpress.org/support/wordpress-version/version-5-0-1/
https://wpvulndb.com/vulnerabilities/9171
https://security-tracker.debian.org/tracker/CVE-2018-20148
https://nvd.nist.gov/vuln/detail/CVE-2018-20148
https://blog.secarma.co.uk/labs/near-phar-dangerous-unserialization-wherever-you-are
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-20148
https://www.mend.io/vulnerability-database/CVE-2018-20148

Severity Score

Weakness Type (CWE)

Deserialization of Untrusted Data

CWE-502

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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