Quick answers
- Is CVE-2026-8089 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-8089 being exploited in the wild.
- How severe is CVE-2026-8089?
- High severity, with a CVSS score of 7.1, published 17 June 2026.
- Which products and versions are affected?
- weMail < 2.1.3.
- Is there a fix for CVE-2026-8089?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-8089 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-8089?
- Check whether you run weMail at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A Reflected Cross-Site Scripting (XSS) vulnerability exists in the weMail plugin for WordPress due to insufficient sanitization of the 'form_id' parameter in the 'wemail_preview' AJAX action. While the plugin uses sanitize_text_field(), this function does not encode double quotes, allowing an attacker to break out of HTML attributes in the response. Because the AJAX response is not protected by a nonce and includes a valid 'wp_rest' nonce in the payload, an unauthenticated attacker can craft a URL that, when visited by an authenticated administrator, executes arbitrary JavaScript. This can be leveraged to perform a one-shot account takeover by using the reflected REST API nonce to create a new administrator user.
Affected products
- weMail weMail: Email Marketing, Email Automation, Newsletters, Subscribers & Email Optins for WooCommerce < 2.1.3
Timeline
- 2026-03-10: other: Initial discovery or related activity mentioned in references
- 2026-05-27: disclosed: Vulnerability details made public by WPScan
- 2026-06-17: advisory: CVE published to NVD