Delicious Recipes WordPress Plugin Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Delicious Recipes plugin for WordPress, affecting versions through 1.10.2. The issue arises from inadequate input sanitization and output escaping in the 'wrap_direction_text' function, which directly incorporates user-supplied href values from nested link nodes into an anchor tag without proper URL validation. This vulnerability allows authenticated attackers with Contributor-level access or higher to inject arbitrary web scripts, including JavaScript, into pages. The injected scripts execute when a user, such as an editor or administrator previewing a pending post, clicks on the malicious link.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the page.

Reproduction

To reproduce this vulnerability, an authenticated user with Contributor-level access or higher can inject a script into the 'steps' block attribute of a recipe. The injected script can include JavaScript code or a 'javascript:' URI. Once the recipe is saved, the script will execute when an editor or administrator previews the post and clicks on the link containing the injected script.

Remediation

Users are advised to update the Delicious Recipes WordPress plugin to version 1.10.3 or a newer patched version.