Blubrry PowerPress <= 11.15.2 - Authenticated (Contributor+) Arbitrary File Upload via 'powerpress_edit_post'

published 2025-11-27 11 mo ago modified 2026-10-19 21 d ago also EUVD-2025-199808

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

The Blubrry PowerPress plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in all versions up to, and including, 11.15.2. This is due to the plugin validating file extensions but not halting execution when validation fails in the 'powerpress_edit_post' function. This makes it possible for authenticated attackers, with Contributor-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

Patch / fix

fixed in 1

blubrry powerpress 11.15.3

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 11 mo ago (2025-11-28)

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

blubrry PowerPress Podcasting plugin by Blubrry

Classification

Weakness

CWE-434 Unrestricted Upload of File with Dangerous Type

Technology feeds

WordPress rss critical rss

References

Sources

CVE List CVE-2025-13536
NVD CVE-2025-13536

Fencer Vulns 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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary