CVE-2022-1763

Static Page eXtended <= 2.1 - Cross-Site Request Forgery

2022-05-23 00:00
Daniel Ruf

Strategic Overview

Status
Unpatched
Affected Plugin
Static Page eXtended
Affected Version
<= 2.1
CVSS
8.8High
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2022-1763
View all Static Page eXtended vulnerabilities

At a glance

CVE-2022-1763 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the Static Page eXtended 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 May 2022, reported by Daniel Ruf.

Vulnerability Overview

Due to missing checks the Static Page eXtended WordPress plugin through 2.1 is vulnerable to CSRF attacks which allows changing the plugin settings, including required user levels for specific features. This could also lead to Stored Cross-Site Scripting due to the lack of escaping in some of the settings

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 Static Page eXtended <= 2.1 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 Static Page eXtended 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 Static Page eXtended: 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

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