Is CVE-2026-89330 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-89330 being exploited in the wild.

How severe is CVE-2026-89330?

Medium severity, with a CVSS score of 6.1, published 18 September 2026.

Which products and versions are affected?

EmbedPress PDF Embedder up to and including 4.6.5.

Is there a fix for CVE-2026-89330?

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-2026-89330 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-89330?

Check whether anything you run is named in the advisory. 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.

CVE-2026-89330: EmbedPress PDF Embedder reflected XSS via unique parameter

CVE-2026-89330 · Severity: medium · CVSS 6.1 · Published 2026-09-18

The EmbedPress plugin for WordPress allows unauthenticated attackers to inject malicious scripts into web pages through a parameter in the URL. If a user clicks a crafted link, the attacker's script executes in the user's browser with their privileges, potentially stealing session tokens, redirecting to phishing pages, or defacing content.

Quick answers

Is CVE-2026-89330 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-89330 being exploited in the wild.
How severe is CVE-2026-89330?: Medium severity, with a CVSS score of 6.1, published 18 September 2026.
Which products and versions are affected?: EmbedPress PDF Embedder up to and including 4.6.5.
Is there a fix for CVE-2026-89330?: 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-2026-89330 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-89330?: Check whether anything you run is named in the advisory. 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

The plugin contains a reflected Cross-Site Scripting (XSS) vulnerability in the 'unique' parameter due to insufficient input sanitization and output escaping. The vulnerability was introduced in version 4.3.0 during a refactor that removed the esc_url() function that had previously remediated an equivalent issue (CVE-2023-5749). An unauthenticated attacker can craft a malicious URL with JavaScript in the 'unique' parameter, and if a user clicks the link, the script executes in their browser context. No authentication is required, and the attack vector is network-based, requiring only user interaction. A patch is expected to restore proper output escaping.

Affected products

EmbedPress PDF Embedder up to and including 4.6.5

Timeline

2026-09-18: disclosed

References

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