# PowerPress Podcasting plugin by Blubrry <= 11.18.2 - Cross-Site Request Forgery to Onboarding Settings Update

- **ID:** WPSEC-2026-2921
- **Plugin:** PowerPress Podcasting plugin by Blubrry (`powerpress`), https://wordpress.org/plugins/powerpress/
- **Affected versions:** from 8.1 before 11.18.3
- **Fixed in:** 11.18.3 (Update to 11.18.3 or later.)
- **Severity:** Medium 4.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
- **Weakness:** CWE-352
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-11-12)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/powerpress
- **Fix released:** 2026-11-10
- **Published:** 2026-11-12
- **URL:** https://wpsec.com/vuln/WPSEC-2026-2921/

## Description

The PowerPress Podcasting plugin by Blubrry plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 11.18.2 due to missing nonce validation on the onboarding show basics form handler, which also saved arbitrary submitted keys into the feed settings. This makes it possible for unauthenticated attackers to update the podcast feed settings and upload the program image via a forged request, granted they can trick a site administrator into performing an action such as clicking on a link.

## References

- https://wpsec.com/vuln/WPSEC-2026-2921/
- https://plugins.svn.wordpress.org/powerpress/tags/11.18.3/
- https://wordpress.org/plugins/powerpress/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-2921/

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.