WP Content Copy Protection & No Right Click <= 3.3 - Cross-Site Request Forgery to Arbitrary Plugin Installation/Activation

2021-04-22 00:00
WPScanTeam

Strategic Overview

Status
Patched in 3.4
Affected Version
<= 3.3
CVSS
8.8High
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE pending
View all WP Content Copy Protection & No Right Click vulnerabilities

At a glance

This record tracks a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the WP Content Copy Protection & No Right Click WordPress plugin, affecting versions <= 3.3. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 3.4; sites on affected versions should update now. Disclosed April 2021, reported by WPScanTeam.

Vulnerability Overview

The WP Content Copy Protection & No Right Click Plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.3. This is due to missing or incorrect nonce validation on the 'cp_plugins_do_button_job_later_callback' AJAX action. This makes it possible for unauthenticated attackers to install and activate other plugins via a forged request granted they can trick a site administrator 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. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-352: Cross-Site Request Forgery (CSRF)

WP Content Copy Protection & No Right Click <= 3.3 carries this weakness at cp_plugins_do_button_job_later_callback, 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 WP Content Copy Protection & No Right Click the fix is 3.4: builds <= 3.3 are affected, anything from 3.4 onward is not.

Remediation

Update to version 3.4, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WP Content Copy Protection & No Right Click: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP Content Copy Protection & No Right Click 3.4 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

Related records

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