9.8crit

CVE-2018-20148in critical feed

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.getMed…

Published 7 y ago · modified 4 mo ago · JSON

CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
26.8%
percentile 98%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

26.82% probability of exploitation in the next 30 days, higher than 98% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.09.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-502 Deserialization of Untrusted Data
Technology feeds
WordPress (RSS, critical only)

References

  • securityfocus.com /bid/106220 · vdb-entry, x_refsource_BID, x_transferred
  • wordpress.org /support/wordpress-version/version-5-0-1/ · x_refsource_MISC, x_transferred
  • blog.secarma.co.uk /labs/near-phar-dangerous-unserialization-wherever-you-are · x_refsource_MISC, x_transferred
  • codex.wordpress.org /Version_4.9.9 · x_refsource_MISC, x_transferred
  • wpvulndb.com /vulnerabilities/9171 · x_refsource_MISC, x_transferred
  • zdnet.com /article/wordpress-vulnerability-affects-a-third-of-most-popular-websites-online/ · x_refsource_MISC, x_transferred
  • debian.org /security/2019/dsa-4401 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • wordpress.org /news/2018/12/wordpress-5-0-1-security-release/ · x_refsource_MISC, x_transferred
  • lists.debian.org /debian-lts-announce/2019/02/msg00019.html · mailing-list, x_refsource_MLIST, x_transferred
  • zdnet.com /article/wordpress-plugs-bug-that-led-to-google-indexing-some-user-passwords/ · x_refsource_MISC, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.