CVE-2022-1695

WP Simple Adsense Insertion <= 2.0 - Cross-Site Request Forgery

2022-05-12 00:00
Daniel Ruf

Strategic Overview

Status
Patched in 2.1
Affected Version
<= 2.0
CVSS
8.8High
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2022-1695
View all WP Simple Adsense Insertion vulnerabilities

At a glance

CVE-2022-1695 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the WP Simple Adsense Insertion WordPress plugin, affecting versions <= 2.0. 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 2.1; sites on affected versions should update now. Disclosed May 2022, reported by Daniel Ruf.

Vulnerability Overview

The WP Simple Adsense Insertion WordPress plugin before 2.1 does not perform CSRF checks on updates to its admin page, allowing an attacker to trick a logged in user to manipulate ads and inject arbitrary javascript via submitting a form.

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)

Reaching this weakness in WP Simple Adsense Insertion <= 2.0 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 Simple Adsense Insertion the fix is 2.1: builds <= 2.0 are affected, anything from 2.1 onward is not.

Remediation

Update to version 2.1, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WP Simple Adsense Insertion: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP Simple Adsense Insertion 2.1 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

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