PowerPress episode settings permit Contributor stored XSS
PowerPress before 11.16.11 does not sanitize and escape some Podcast Episode settings before rendering them. A Contributor can store script-bearing setting values even when WordPress denies that role the unfiltered_html capability, causing JavaScript to execute when a user views the affected output. The public advisory does not disclose the settings, save endpoint, request parameters, renderer or exact audience that receives the stored payload.
- Component
- PowerPress Podcasting plugin by Blubrry
- Plugin slug
powerpress-podcasting-plugin-by-blubrry- Affected
- < 11.16.11
- Safe version
11.16.11- Published
- Aug 04, 2026
This CVE was published Aug 04, 2026 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update PowerPress to 11.16.11 or later. Review podcast episode settings changed by delegated authors, remove unexpected markup and invalidate privileged sessions if administrators viewed affected content.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The PowerPress Podcasting plugin by Blubrry WordPress plugin before 11.16.11 does not sanitise and escape some of its Podcast Episode settings, which could allow users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H