CVE-2019-7299

WP Support Plus Responsive Ticket System <= 9.1.1 - Stored Cross-Site Scripting

2019-02-04 00:00
Christian Angel

Strategic Overview

Status
Patched in 9.1.2
Affected Plugin
WP Support Plus Responsive Ticket System
Affected Version
< 9.1.2
CVSS
6.1Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2019-7299
View all WP Support Plus Responsive Ticket System vulnerabilities

At a glance

CVE-2019-7299 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the WP Support Plus Responsive Ticket System WordPress plugin, affecting versions < 9.1.2. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 9.1.2; sites on affected versions should update now. Disclosed February 2019, reported by Christian Angel.

Vulnerability Overview

A stored cross-site scripting (XSS) vulnerability in the submit_ticket.php module in the WP Support Plus Responsive Ticket System plugin 9.1.1 for WordPress allows remote attackers to inject arbitrary web script or HTML via the subject parameter in wp-content/plugins/wp-support-plus-responsive-ticket-system/includes/ajax/submit_ticket.php.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in WP Support Plus Responsive Ticket System < 9.1.2 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For WP Support Plus Responsive Ticket System the fix is 9.1.2: builds < 9.1.2 are affected, anything from 9.1.2 onward is not.

Remediation

Update to version 9.1.2, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WP Support Plus Responsive Ticket System: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP Support Plus Responsive Ticket System 9.1.2 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-7299https://www.wordfence.com/threat-intel/vulnerabilities/id/80b31295-474e-4375-b566-c628e869da10https://nvd.nist.gov/vuln/detail/CVE-2019-7299

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C