XSS in Blubrry Powerpress Podcasting Plugin By
CVE-2026-12098
The PowerPress Podcasting plugin by Blubrry plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'embed' Episode Meta Field in all versions up to, and including, 11.16.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The embed value is stored via update_post_meta() rather than through WordPress core's post content pipeline, meaning kses-on-save filtering is never applied — even for Author-role users who would otherwise lack unfiltered_html — making this path unprotected by WordPress's standard role-based XSS mitigations.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (8.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Blubrry Powerpress Podcasting Plugin By — versions 0
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/7a74e4fb-15a9-4fc9-afa6-396b0…
- plugins.trac.wordpress.org/browser/powerpress/tags/11.16.8/powerpress.php
- plugins.trac.wordpress.org/browser/powerpress/tags/11.16.8/powerpress.php
- plugins.trac.wordpress.org/browser/powerpress/tags/11.16.8/powerpressadmin.php
- plugins.trac.wordpress.org/browser/powerpress/tags/11.16.4/powerpress.php
- plugins.trac.wordpress.org/browser/powerpress/tags/11.16.4/powerpress.php
- plugins.trac.wordpress.org/browser/powerpress/tags/11.16.4/powerpressadmin.php
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-12098?
- CVE-2026-12098 is a medium-severity vulnerability in Blubrry Powerpress Podcasting Plugin By, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-06-18.
- How severe is CVE-2026-12098?
- Medium severity. CVSS v3 base score is 6.4 out of 10.