CVE-2023-39997

Popup by Supsystic <= 1.10.19 - Cross-Site Request Forgery

2023-08-11 00:00
Rafshanzani Suhada

Strategic Overview

Status
Patched in 1.10.20
Affected Plugin
Smart Popup by Supsystic
Affected Version
<= 1.10.19
CVSS
6.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2023-39997
View all Smart Popup by Supsystic vulnerabilities

At a glance

CVE-2023-39997 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Smart Popup by Supsystic WordPress plugin, affecting versions <= 1.10.19. It carries a CVSS score of 6.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.10.20; sites on affected versions should update now. Disclosed August 2023, reported by Rafshanzani Suhada.

Vulnerability Overview

The Popup by Supsystic plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.10.19. This is due to missing or incorrect nonce validation for a subset of actions on the 'havePermissions' function. This makes it possible for unauthenticated attackers to perform actions such as sending test emails or saving plugin options via a forged request granted they can trick an authorized user into performing an action such as clicking on a link.

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-352: Cross-Site Request Forgery (CSRF)

Smart Popup by Supsystic <= 1.10.19 carries this weakness at havePermissions, and reaching it takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Smart Popup by Supsystic the fix is 1.10.20: builds <= 1.10.19 are affected, anything from 1.10.20 onward is not.

Remediation

Update to version 1.10.20, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Smart Popup by Supsystic: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Smart Popup by Supsystic 1.10.20 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-39997https://www.wordfence.com/threat-intel/vulnerabilities/id/10021498-73c8-4767-b059-f282ddc35963https://nvd.nist.gov/vuln/detail/CVE-2023-39997

Related records

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