CVE-2026-75966

Deferred Deferred - Pending Action

Stored XSS in Podlove Podcast Publisher WordPress Plugin

Publication date: 2026-09-09

Last updated on: 2026-09-09

Assigner: Wordfence

Description

The Podlove Podcast Publisher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'episode_contributor[..][..][comment]' Parameter in all versions up to, and including, 4.5.5 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. The contributor comment is stored in a plugin-managed custom table, bypassing WordPress core's wp_kses_post filter, and the save_post hook fires without a nonce check, meaning any user who can edit posts can exploit this without further preconditions.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-09

Last Modified

2026-09-09

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-75966

EUVD

EUVD-2026-74609

Affected Vendors & Products

Vendor	Product	Version / Range
podlove	podcast_publisher	to 4.5.5 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

The Podlove Podcast Publisher WordPress plugin up to version 4.5.5 has a stored cross-site scripting (XSS) vulnerability. Attackers with contributor-level access or higher can inject malicious scripts via the episode_contributor parameter. These scripts execute when users view infected pages. The vulnerability bypasses WordPress core protections and lacks proper nonce checks during post edits.

Detection Guidance

This vulnerability requires checking WordPress sites with the Podlove Podcast Publisher plugin installed up to version 4.5.5. Inspect contributor comments in the plugin's custom table for malicious scripts. No direct network/system commands are provided in the context to detect this.

Impact Analysis

If exploited, this vulnerability allows attackers to steal user sessions, redirect to malicious sites, or deface your WordPress site. It requires only contributor-level access, making it easier for insiders or compromised accounts to cause damage. The injected scripts persist in plugin-managed tables, affecting all visitors.

Compliance Impact

This vulnerability could lead to data breaches by enabling attackers to steal user data, violating GDPR and HIPAA requirements for data protection. Non-compliance risks fines and legal penalties. The persistent nature of the XSS increases exposure duration, exacerbating regulatory violations.

Mitigation Strategies

Update the Podlove Podcast Publisher plugin to the latest version, which patches this vulnerability. If updating is not immediately possible, consider disabling the plugin until an update is applied.

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