Debian Long Term Support / LTS Security Information / 2019 / Security Information -- DLA-1742-1 wordpress

Debian Security Advisory

DLA-1742-1 wordpress -- LTS security update

Date Reported:

01 Apr 2019

Affected Packages:

wordpress

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 924546.
In Mitre's CVE dictionary: CVE-2019-8942, CVE-2019-9787.

More information:

Simon Scannell of Ripstech Technologies discovered multiple vulnerabilities in wordpress, a web blogging manager.

• CVE-2019-8942

  remote code execution in wordpress because an _wp_attached_file Post Meta entry can be changed to an arbitrary string, such as one ending with a .jpg?file.php substring. An attacker with author privileges can execute arbitrary code by uploading a crafted image containing PHP code in the Exif metadata.

• CVE-2019-9787

  wordpress does not properly filter comment content, leading to Remote Code Execution by unauthenticated users in a default configuration. This occurs because CSRF protection is mishandled, and because Search Engine Optimization of A elements is performed incorrectly, leading to XSS. The XSS results in administrative access.

For Debian 8 Jessie, these problems have been fixed in version 4.1.26+dfsg-1+deb8u1.

We recommend that you upgrade your wordpress packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS