CVE-2026-12054: Download Manager reflected cross-site scripting (XSS) vulnerability

medium 6.1 published 2026-10-10 · updated 2026-10-13

Affected versions: 3.3.57 and older
Fixed in: 3.3.58 *
Latest version: 3.3.75
Severity: Medium · CVSS 6.1
Active installs: 100,000+
Type: Reflected cross-site scripting (XSS)

* The source does not name a fixed version; this is the first wordpress.org release after the last affected version.

What an attacker needs

Access: None. No account or login is needed.
Interaction: It also needs someone on the site (often an admin) to click a link, open a page or submit a form the attacker prepared.

CVSS vector (score by Wordfence): CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

What to do now

Update Download Manager to 3.3.58 or newer (the latest is 3.3.75): Dashboard → Updates, or Plugins → “update now”.
If you cannot update right away, deactivate it until you can.
Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
Not sure which version you run? Check your version against every known Download Manager issue. With WP-CLI: wp plugin get download-manager --field=version.
If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.

The advisory

The Download Manager plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'REFERRER' parameter in all versions up to, and including, 3.3.57 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute in a victim's browser.

Description from the CVE record, published by Wordfence (the CVE Numbering Authority), via the NVD entry for CVE-2026-12054.

References

NVD CVE-2026-12054 nvd.nist.gov
Wordfence advisory www.wordfence.com
Code change (fix) plugins.trac.wordpress.org

Ran an affected version? Check your site for signs of a hack

The free scan reads the public side of your site and looks for spam pages, hidden redirects, injected scripts and blacklist entries. No login, no install, about a minute.

Where this data comes from

CVE record, score and references: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
Versions and install counts: wordpress.org/plugins/download-manager (Plugins API), fetched 2026-11-04.
The summary, “what an attacker needs” and “what to do” sections are our plain-English reading of the record and the plugin's release history; the quoted description is the record's own text. Spot an error? Email Daniel.