PatchSiren cyber security CVE debrief

CVE-2026-6495 Ajax Load More CVE debrief

A reflected cross-site scripting (XSS) vulnerability exists in the Ajax Load More WordPress plugin before version 7.8.4. The plugin fails to sanitize and escape a parameter before rendering it in page output, enabling attackers to inject malicious scripts. Successful exploitation could compromise high-privilege user sessions, including administrators. The vulnerability carries a HIGH severity CVSS score of 7.1. No known exploitation in ransomware campaigns has been documented.

Vendor: Ajax Load More
Product: Ajax Load More
CVSS: HIGH 7.1
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-05-18
Original CVE updated: 2026-05-18
Advisory published: 2026-05-18
Advisory updated: 2026-05-18

Who should care

WordPress site administrators using Ajax Load More plugin; security teams managing WordPress deployments; developers maintaining custom integrations with Ajax Load More; compliance officers tracking CVE coverage for web application security

Technical summary

The Ajax Load More plugin for WordPress versions prior to 7.8.4 contains a reflected XSS vulnerability stemming from insufficient input sanitization. An attacker can craft a malicious request containing a payload in a vulnerable parameter; when a high-privilege user (such as an administrator) accesses the crafted URL, the unsanitized parameter value executes in the browser context. This enables session hijacking, credential theft, or administrative action under the victim's identity. The attack requires user interaction (UI:R) and network access (AV:N) but no authentication (PR:N). The vulnerability is classified under CWE-79 and scored CVSS 3.1 7.1 (HIGH).

Defensive priority

HIGH

Recommended defensive actions

Upgrade Ajax Load More WordPress plugin to version 7.8.4 or later
Implement Content Security Policy (CSP) headers to mitigate XSS impact
Review and sanitize all user-supplied parameters in plugin integrations
Enable WordPress automatic updates for security patches
Conduct security review of admin-facing plugin functionality

Evidence notes

Vulnerability confirmed via WPScan advisory. NVD status currently Deferred. CVSS 3.1 vector: AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L. CWE-79 (Improper Neutralization of Input During Web Page Generation) identified as root cause.

Official resources

2026-05-18