CVE-2026-111314

affiliate-toolkit <= 3.9.2 - Unauthenticated Stored Cross-Site Scripting via 'atkp_product_producturl' Parameter

2026-10-27 14:15
Wordfence PRISM

Strategic Overview

Status
Patched in 3.9.3
Affected Plugin
affiliate-toolkit – Multi-Network Affiliate & Amazon Product Display
Affected Version
<= 3.9.2
CVSS
7.2High
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2026-111314
View all affiliate-toolkit – Multi-Network Affiliate & Amazon Product Display vulnerabilities

At a glance

CVE-2026-111314 is a high-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the affiliate-toolkit WordPress plugin, affecting versions <= 3.9.2. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.9.3; sites on affected versions should update now. Disclosed October 2026, reported by Wordfence PRISM.

Vulnerability Overview

The affiliate-toolkit – Multi-Network Affiliate & Amazon Product Display plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'atkp_product_producturl' parameter in all versions up to, and including, 3.9.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation by unauthenticated attackers requires that the plugin's AJAX loading / AJAX handler option is enabled (atkp_options::get_ajax_loading_enabled() || get_ajax_handler_enabled()) and the attacker knows a product id to render. On a default installation, where that is not configured, the vulnerability requires attackers with contributor-level access and above.

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, and no interaction from a victim user.

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

affiliate-toolkit <= 3.9.2 carries this weakness at atkp_product_producturl, and reaching it takes no account at all. 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 affiliate-toolkit the fix is 3.9.3: builds <= 3.9.2 are affected, anything from 3.9.3 onward is not.

Remediation

Update to version 3.9.3, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: affiliate-toolkit 3.9.3 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-111314https://www.wordfence.com/threat-intel/vulnerabilities/id/c0ceea54-924a-41c1-a157-8eba24b5f666https://nvd.nist.gov/vuln/detail/CVE-2026-111314

Related records

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