CVE-2026-118587 json
PowerPress Podcasting plugin by Blubrry <= 11.18.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'width' and 'height' Shortcode Attributes
published 2d ago modified yesterday also EUVD-2026-124999
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
The 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.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- yesterday
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-14).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected products
- blubrry PowerPress Podcasting plugin by Blubrry
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/f5d3930f-d2da-4992-ad3a-228ffd7a5a6c?source=cve
- plugins.trac.wordpress.org /browser/powerpress/tags/11.18.0/powerpress-player.php#L1240
- plugins.trac.wordpress.org /browser/powerpress/tags/11.18.0/powerpress-player.php#L135
- plugins.trac.wordpress.org /browser/powerpress?rev=3782100#trunk
- plugins.trac.wordpress.org /changeset/3782099/powerpress/trunk/powerpress-player.php
Sources
- CVE List CVE-2026-118587
- NVD CVE-2026-118587
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.