CVE-2026-16293 Blubrry PowerPress < 11.16.11 - Contributor+ Stored XSS via Podcast Episode Chapters URL
Contributors can inject malicious scripts via Podcast Episode Chapters URLs, leading to stored XSS attacks in the PowerPress WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-16293?
CVE-2026-16293 is a medium-severity cross-site scripting vulnerability in Unknown PowerPress Podcasting plugin by Blubrry, published on 4 Aug 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-16293?
How do I fix CVE-2026-16293?
No fix has been published for CVE-2026-16293 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-2026-16293 being exploited?
There is no known exploitation of CVE-2026-16293 in the wild and no public exploit code.
Sources
Also known as GHSA-x9vf-qhcr-qmmf.