CVE-2026-53742 Simple Link Directory through 9.0.4 Stored XSS via Embed Shortcode Attributes
Attackers with contributor access can inject malicious scripts via embed shortcode attributes, executing code in viewers' browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-53742?
CVE-2026-53742 is a medium-severity cross-site scripting vulnerability in quantumcloud Simple Link Directory, published on 10 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Simple Link Directory through 9.0.4 echoes embed shortcode attributes into HTML data attributes without escaping in the embedder template. Attackers with contributor access can craft a shortcode attribute that injects an event handler executing in a viewer's browser.
Weakness: CWE-79
Which versions are affected by CVE-2026-53742?
How do I fix CVE-2026-53742?
No fix has been published for CVE-2026-53742 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-2026-53742 being exploited?
There is no known exploitation of CVE-2026-53742 in the wild and no public exploit code.
Sources
Also known as GHSA-w47h-mhf5-ch25.