CVE-2026-14343 Cross-site scripting in Download Manager
Authenticated attackers with contributor access can inject arbitrary scripts via shortcode attributes, leading to stored XSS execution in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-14343?
CVE-2026-14343 is a medium-severity cross-site scripting vulnerability in codename065 Download Manager, published on 9 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'note_before' and 'note_after' Shortcode Attributes in all versions up to, and including, 3.3.61 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. Because wp_kses_post filters post content on save for users without unfiltered_html, only kses-allowed tag and attribute payloads that survive save-time filtering will reach the unescaped sink; however, the sink itself remains unsafe and such payloads can still execute in the browser when a user renders the shortcode.
Weakness: CWE-79
Which versions are affected by CVE-2026-14343?
How do I fix CVE-2026-14343?
No fix has been published for CVE-2026-14343 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-14343 being exploited?
There is no known exploitation of CVE-2026-14343 in the wild and no public exploit code.
Sources
Also known as GHSA-v367-5mw9-22gq.