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PatchSiren cyber security CVE debrief

CVE-2026-2988 blubrry CVE debrief

The Blubrry PowerPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'powerpress' and 'podcast' shortcodes in versions up to, and including, 11.15.15. This vulnerability is due to insufficient input sanitization and output escaping, allowing authenticated attackers with contributor-level access and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Users with contributor-level access and above should be aware of this vulnerability and take steps to mitigate it. Affected product deployments should be identified, and owners assigned for follow-up.

Vendor
blubrry
Product
PowerPress Podcasting plugin by Blubrry
CVSS
MEDIUM 6.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-08
Original CVE updated
2026-07-25
Advisory published
2026-04-08
Advisory updated
2026-07-25

Who should care

Users of the Blubrry PowerPress plugin for WordPress, particularly those with contributor-level access and above, should be aware of this vulnerability and take steps to mitigate it. Affected operators, platforms, vulnerability-management, and security teams should assess and address potential impacts.

Technical summary

The Blubrry PowerPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'powerpress' and 'podcast' shortcodes in versions up to, and including, 11.15.15. This is due to insufficient input sanitization and output escaping, making it possible for authenticated attackers with contributor-level access and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Affected product context requires defensive impact assessment and source-grounded technical framing.

Defensive priority

Medium priority due to the CVSS score of 6.4 and the potential for authenticated attackers to inject arbitrary web scripts.

Recommended defensive actions

  • Update the Blubrry PowerPress plugin to a version that is not vulnerable
  • Implement input sanitization and output escaping for the 'powerpress' and 'podcast' shortcodes
  • Restrict access to the plugin's functionality to prevent authenticated attackers from injecting arbitrary web scripts
  • Monitor for suspicious activity and implement additional security measures as needed
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
  • Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record was published on 2026-04-08T04:17:00.897Z and was last modified on 2026-07-25T10:10:00.167Z. The NVD entry is currently Deferred. Evidence is limited to CVE and NVD information. Defenders should verify affected product deployments, review official advisories, and plan for vendor-supported updates or mitigations.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-04-08T04:17:00.897Z and has not been modified since then. The NVD entry is currently Deferred.