CVE-2021-25071

Akismet Privacy Policies <= 2.0.1 - Reflected Cross-Site Scripting

2022-03-07 00:00
Krzysztof Zając

Strategic Overview

Status
Unpatched
Affected Version
<= 2.0.1
CVSS
6.1Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2021-25071
View all Akismet Privacy Policies vulnerabilities

At a glance

CVE-2021-25071 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Akismet Privacy Policies WordPress plugin, affecting versions <= 2.0.1. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed March 2022, reported by Krzysztof Zając.

Vulnerability Overview

The Akismet Privacy Policies WordPress plugin through 2.0.1 does not sanitise and escape the translation parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting

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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in Akismet Privacy Policies <= 2.0.1 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. No fixed build of this plugin is recorded for Akismet Privacy Policies yet, so installs running <= 2.0.1 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 Akismet Privacy Policies: 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