What’s Vulnerable › Vulnerabilities
CVE-2026-13733: Download Manager <= 3.3.60 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'no_data_msg' Shortcode Attribute
- Severity: medium (CVSS 6.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-01 · updated 2026-07-01
- Weakness: CWE-79
Description
The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'no_data_msg' Shortcode Attribute in all versions up to, and including, 3.3.60 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Although wp_kses_post is applied to post content on save, it only strips HTML tokens and does not neutralize C-style escape sequences embedded within shortcode attribute values, meaning contributors can craft a payload that survives the kses filter and is silently reconstructed into a raw script tag at render time.
Affected products
- codename065 Download Manager: through 3.3.60
References
- https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.59/src/Package/Shortcodes.php#L37
- https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.59/src/Package/Shortcodes.php#L398
- https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.59/src/Package/views/all-packages-shortcode.php#L396
- https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.60/src/Package/Shortcodes.php#L37
- https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.60/src/Package/Shortcodes.php#L398
- https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.60/src/Package/views/all-packages-shortcode.php#L396
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3590868%40download-manager&new=3590868%40download-manager&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ebf96aa9-2ee7-4411-8f43-3e8d023197bd?source=cve
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