CVE-2023-4276

Absolute Privacy <= 2.1 - Cross-Site Request Forgery to User Email/Password Change

2023-08-09 00:00
István Márton

Strategic Overview

Status
Unpatched
Affected Plugin
Absolute Privacy
Affected Version
<= 2.1
CVSS
8.8High
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2023-4276
View all Absolute Privacy vulnerabilities

At a glance

CVE-2023-4276 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the Absolute Privacy WordPress plugin, affecting versions <= 2.1. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed August 2023, reported by István Márton.

Vulnerability Overview

The Absolute Privacy plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.1. This is due to missing nonce validation on the 'abpr_profileShortcode' function. This makes it possible for unauthenticated attackers to change user email and password 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)

Absolute Privacy <= 2.1 carries this weakness at abpr_profileShortcode, 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. No fixed build of this plugin is recorded for Absolute Privacy yet, so installs running <= 2.1 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

The attempt arrives as an ordinary request to Absolute Privacy: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

  • Firewall
  • Alerts

External References

Related records

Other vulnerabilities in Absolute Privacy

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