PowerPress Podcasting plugin by Blubrry <= 11.18.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'width' and 'height' Shortcode Attributes

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-118587
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-13 10:17:26 UTC
Updated2026-11-13 17:17:18 UTC
DescriptionThe PowerPress Podcasting plugin by Blubrry plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'width' parameter in all versions up to, and including, 11.18.0 due to insufficient input sanitization and output escaping. This makes 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. This vulnerability is only exploitable when the site's configured video player is set to html5video, or when the media URL uses a .webm or .ogv extension, as these conditions are required to route the shortcode attributes through the vulnerable powerpressplayer_build_html5video() builder. Successful exploitation additionally requires an action by an editor — the attacker cannot trigger the vulnerability on their own.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.002980000 probability, percentile 0.227860000 (date 2026-11-13)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.1CNADECLARED5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Blubrry PowerPress Podcasting Plugin By Blubrry affected 11.18.0 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/powerpress [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/powerpress/tags/11.18.0/powerpress-player.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/f5d3930f-d2da-4992-ad3a-228ff... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/powerpress/tags/11.18.0/powerpress-player.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3782099/powerpress/trunk/powerpress-player.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Wordfence PRISM (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-10-28T16:30:48.000ZVendor Notified
CNA2026-11-12T20:54:59.000ZDisclosed

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