CVE-2022-47162

DH – Anti AdBlocker <= 36 - Cross-Site Request Forgery

2023-01-27 00:00

Strategic Overview

Status: Patched in 37
Affected Plugin: DH – Anti AdBlocker
Affected Version: <= 36
CVSS: 4.3Medium
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE-2022-47162

View all DH – Anti AdBlocker vulnerabilities

At a glance

CVE-2022-47162 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the DH WordPress plugin, affecting versions <= 36. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 37; sites on affected versions should update now. Disclosed January 2023, reported by rezaduty.

Vulnerability Overview

The DH – Anti AdBlocker plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 36. This is due to missing or incorrect nonce validation when changing settings. This makes it possible for unauthenticated attackers to modify plugin settings, via 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.

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

Reaching this weakness in DH <= 36 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 DH the fix is 37: builds <= 36 are affected, anything from 37 onward is not.

Remediation

Update to version 37, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to DH: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: DH 37 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-47162 https://www.wordfence.com/threat-intel/vulnerabilities/id/f79d3938-bf85-4e0d-80a3-2ff365482d36 https://nvd.nist.gov/vuln/detail/CVE-2022-47162

CVSS Vector

4.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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