CVE-2024-1586

Schema & Structured Data for WP & AMP <= 1.26 - Authenticated (Custom) Stored Cross-Site Scripting

2024-02-19 00:00
catfather

Strategic Overview

Status
Patched in 1.27
Affected Plugin
Schema & Structured Data for WP & AMP
Affected Version
<= 1.26
CVSS
6.4Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2024-1586
View all Schema & Structured Data for WP & AMP vulnerabilities

At a glance

CVE-2024-1586 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Schema & Structured Data for WP & AMP WordPress plugin, affecting versions <= 1.26. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Custom level or above. The issue is fixed in version 1.27; sites on affected versions should update now. Disclosed February 2024, reported by catfather.

Vulnerability Overview

The Schema & Structured Data for WP & AMP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom schema in all versions up to, and including, 1.26 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. By default the required authentication level is admin, but administrators have the ability to assign role based access to users as low as subscriber.

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 interaction from a victim user.

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

Reaching this weakness in Schema & Structured Data for WP & AMP <= 1.26 takes an account at Custom level or above. 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. For Schema & Structured Data for WP & AMP the fix is 1.27: builds <= 1.26 are affected, anything from 1.27 onward is not.

Remediation

Update to version 1.27, or a newer patched version

How does WordSec protect against this?

An attacker needs Custom access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Schema & Structured Data for WP & AMP 1.27 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-1586https://www.wordfence.com/threat-intel/vulnerabilities/id/7e7e6ea7-4e0b-4d8a-9306-45b55d41fbb5https://nvd.nist.gov/vuln/detail/CVE-2024-1586

Related records

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