# CVE-2026-12054: WordPress Download Manager reflected XSS in REFERRER parameter

Source: https://junglewise.ai/threats/cve-2026-12054-the-download-manager-plugin-for-wordpress-is-vulnerable-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-10. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-12054 · Severity: medium · CVSS 6.1 · Published 2026-10-10

The Download Manager plugin for WordPress, used by site administrators to manage downloadable files, fails to properly sanitize user input in the REFERRER parameter. An attacker can craft a malicious link that injects arbitrary JavaScript code, allowing them to steal session cookies, redirect users, or perform actions on behalf of logged-in administrators.

Technologies: [Wordpress Download Manager](https://junglewise.ai/threats/technologies/wordpress-download-manager). Vendors: [Wordpress](https://junglewise.ai/threats/vendors/wordpress).

## Quick answers

**Is CVE-2026-12054 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-12054 being exploited in the wild.

**How severe is CVE-2026-12054?** Medium severity, with a CVSS score of 6.1, published 10 October 2026.

**Which products and versions are affected?** Wordpress Download Manager up to and including 3.3.57.

**Is there a fix for CVE-2026-12054?** 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-2026-12054 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-12054?** Check whether you run Wordpress Download Manager 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

Reflected XSS vulnerability in the REFERRER parameter due to insufficient input sanitization and output escaping. An unauthenticated attacker can inject arbitrary web scripts that execute in a victim's browser when the malicious link is visited, potentially compromising user sessions and site security.

## Affected products

- WordPress Download Manager up to and including 3.3.57

## Timeline

- 2026-10-10: disclosed

## References

- [https://plugins.trac.wordpress.org/changeset/3573804/download-manager](https://plugins.trac.wordpress.org/changeset/3573804/download-manager)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/f0165bf4-03ed-4021-8f45-6beef4ef3140?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/f0165bf4-03ed-4021-8f45-6beef4ef3140?source=cve)

## Related threats

- [Download Manager WordPress plugin access control bypass in media preview](https://junglewise.ai/threats/cve-2026-110948-the-download-manager-wordpress-plugin-before-3-3-73-download)
- [Download Manager plugin for WordPress stored XSS via not_found parameter](https://junglewise.ai/threats/cve-2026-9696-the-download-manager-plugin-for-wordpress-is-vulnerable-to-stored)
- [Download Manager plugin sensitive information exposure in suspension email](https://junglewise.ai/threats/cve-2026-103964-the-download-manager-plugin-for-wordpress-is-vulnerable-to)