# StreamCast – bring live radio to your site with a sleek player <= 2.4.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Stream Metadata

- **ID:** WPSEC-2026-1809
- **Plugin:** StreamCast – bring live radio to your site with a sleek player (`streamcast`), https://wordpress.org/plugins/streamcast/
- **Affected versions:** all versions before 2.4.7
- **Fixed in:** 2.4.7 (Update to 2.4.7 or later.)
- **Severity:** Medium 6.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N)
- **Weakness:** CWE-79
- **Usage among sites WPSec scans:** plugin Low, affected versions None seen (as of 2026-10-28)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/streamcast
- **Fix released:** 2026-10-27
- **Published:** 2026-10-28
- **URL:** https://wpsec.com/vuln/WPSEC-2026-1809/

## Description

The StreamCast plugin for WordPress is vulnerable to Stored Cross-Site Scripting via remote stream metadata in all versions up to, and including, 2.4.6, due to the streamcast_fetch_stream AJAX proxy returning the raw remote response body without sanitization. The Standard player then writes the fetched now-playing title into the page as HTML. This makes it possible for authenticated attackers with contributor-level access and above to point a StreamCast block at a stream server they control and enable fetching the title from that server. The server can then inject arbitrary web scripts that execute whenever a user accesses a page containing the player. Attackers who control a stream server already configured on the site can do the same.

## References

- https://wpsec.com/vuln/WPSEC-2026-1809/
- https://plugins.svn.wordpress.org/streamcast/tags/2.4.7/
- https://wordpress.org/plugins/streamcast/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-1809/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.