Cross-site scripting in blubrry PowerPress Podcasting plugin by Blubrry
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-12098
- 2026-10-03 Alias added: GHSA-6mj9-8qq5-v945
References
Other 8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7a74e4fb-15a9-4fc9-afa6-396b0f026615?source=cve
- https://plugins.trac.wordpress.org/browser/powerpress/tags/11.16.8/powerpress.php#L659
- https://plugins.trac.wordpress.org/browser/powerpress/tags/11.16.8/powerpress.php#L420
- https://plugins.trac.wordpress.org/browser/powerpress/tags/11.16.8/powerpressadmin.php#L2984
- https://plugins.trac.wordpress.org/browser/powerpress/tags/11.16.4/powerpress.php#L659
- https://plugins.trac.wordpress.org/browser/powerpress/tags/11.16.4/powerpress.php#L420
- https://plugins.trac.wordpress.org/browser/powerpress/tags/11.16.4/powerpressadmin.php#L2984
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3575897%40powerpress&new=3575897%40powerpress&sfp_email=&sfph_mail=
More blubrry vulnerabilities
- TI-2024-08566 PowerPress Podcasting < 11.9.18 - Author+ XSS via Podcast URL CVSS 3.1MEDIUM 5.9
- TI-2023-04437 PowerPress Podcasting < 11.0.12 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2024-08563 PowerPress Podcasting < 11.9.18 - Author+ XSS CVSS 3.1MEDIUM 4.8
- TI-2025-29016 WordPress PowerPress Podcasting <= 11.12.5 - Arbitrary File Upload Vulnerability CVSS 3.1CRITICAL 9.9
- TI-2026-19164 WordPress PowerPress Podcasting plugin <= 11.15.10 - PHP Object Injection vulnerability CVSS 3.1HIGH 8.8
- TI-2025-12367 Blubrry PowerPress <= 11.15.2 - Authenticated (Contributor+) Arbitrary File Upload via 'powerpress_edit_post' CVSS 3.1HIGH 8.8
Sources
- CVE-2026-12098 · CVE Program
- CVE-2026-12098 · NVD
- FIRST EPSS
- GHSA-6mj9-8qq5-v945 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences