CVE-2026-95670: No External Links <= 5.2.0 - Unauthenticated Stored Cross-Site Scripting via Log URL via /goto/{base64} Redirect
The No External Links plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Log URL via /goto/{base64} Redirect in all versions up to, and including, 5.2.0 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. This is only exploitable when the administrator has enabled the 'Link Encoding: Base64' option in the plugin settings.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Disable the 'Link Encoding: Base64' option in the plugin settings to prevent exploitation through the /goto/{base64} redirect.
No External Links WordPress plugin Link Encoding: Base64 = disabled
Event History
Frequently Asked Questions
Which deployments are affected?
Installations running No External Links 5.2.0 or earlier are affected only if the administrator has enabled the plugin's "Link Encoding: Base64" setting.
What does an attacker need to exploit this issue?
An attacker does not need authentication or user interaction to inject the malicious content. The injected script executes when a user accesses an injected page.
What can be done if updating is not immediately possible?
Disable the "Link Encoding: Base64" option in the plugin settings, as the issue is only exploitable when that option is enabled.