CVE-2026-13733 json
Download Manager <= 3.3.60 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'no_data_msg' Shortcode Attribute
published 2026-07-01 4 mo ago modified 2026-07-01 4 mo ago also EUVD-2026-40923
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- codename065 Download Manager
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/ebf96aa9-2ee7-4411-8f43-3e8d023197bd?source=cve
- plugins.trac.wordpress.org /browser/download-manager/tags/3.3.59/src/Package/views/all-packages-shortcode.php#L396
- plugins.trac.wordpress.org /browser/download-manager/tags/3.3.60/src/Package/views/all-packages-shortcode.php#L396
- plugins.trac.wordpress.org /browser/download-manager/tags/3.3.60/src/Package/Shortcodes.php#L398
- plugins.trac.wordpress.org /browser/download-manager/tags/3.3.60/src/Package/Shortcodes.php#L37
- plugins.trac.wordpress.org /browser/download-manager/tags/3.3.59/src/Package/Shortcodes.php#L398
- plugins.trac.wordpress.org /browser/download-manager/tags/3.3.59/src/Package/Shortcodes.php#L37
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3590868%40download-manager&new=3590868%40download-manager&sfp_e
Sources
- CVE List CVE-2026-13733
- NVD CVE-2026-13733
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.