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Deserialization of Untrusted Data Affecting wordpress package, versions <4.7.5+dfsg-2+deb9u5

Severity

 Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
26.82% (98th percentile)

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  • Snyk IDSNYK-DEBIAN9-WORDPRESS-363008
  • published14 Dec 2018
  • disclosed14 Dec 2018
Report a new vulnerability Found a mistake?

Introduced: 14 Dec 2018

CVE-2018-20148  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

Upgrade Debian:9 wordpress to version 4.7.5+dfsg-2+deb9u5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wordpress package and not the wordpress package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

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.