What is the CVSS score of CVE-2026-2988?

CVE-2026-2988 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

WordPress CVE-2026-2988

EUVD-2026-20035 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-04-08 Wordfence

GHSA-pfxv-5cjm-vgpg

WordPress XSS

6.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

EUVD ID Assigned

Apr 08, 2026 - 03:45 euvd

EUVD-2026-20035

Analysis Generated

Apr 08, 2026 - 03:45 vuln.today

CVE Published

Apr 08, 2026 - 02:25 nvd

MEDIUM 6.4

DescriptionCVE.org

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 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.

AnalysisAI

Stored cross-site scripting in Blubrry PowerPress plugin versions up to 11.15.15 allows authenticated contributors and above to inject arbitrary scripts via the 'powerpress' and 'podcast' shortcodes, executing malicious code whenever users access affected pages. The vulnerability stems from insufficient input sanitization and output escaping in shortcode processing. EPSS score of 6.4 reflects moderate risk; exploitation requires contributor-level WordPress access but no public exploit code has been identified at the time of analysis.

Technical ContextAI

The vulnerability exploits improper handling of user input within WordPress shortcode processors. Blubrry PowerPress uses the 'powerpress' and 'podcast' shortcodes to embed podcast content, but fails to sanitize attributes and fails to escape output before rendering them in page content. This is a classic CWE-79 (Improper Neutralization of Input During Web Page Generation) flaw. The affected product (cpe:2.3:a:blubrry:powerpress_podcasting_plugin_by_blubrry) is a WordPress plugin architecture, meaning it executes within the WordPress page rendering pipeline where shortcode callbacks have direct influence over HTML output. The shortcode processor does not strip or encode malicious script tags or event handlers that contributors inject via shortcode attributes.

RemediationAI

Update Blubrry PowerPress plugin to version 11.15.16 or later, which includes fixes for input sanitization and output escaping in the affected shortcodes. Site administrators should navigate to WordPress Dashboard → Plugins → Installed Plugins, locate Blubrry PowerPress, and click 'Update Now' when available. For sites unable to update immediately, restrict contributor-level access to trusted users only and audit existing posts and pages for suspicious shortcode attributes. Detailed vulnerability and patch information is available at https://www.wordfence.com/threat-intel/vulnerabilities/id/de25459d-9e19-4e3e-982f-0b34fa89dc30?source=cve and https://plugins.trac.wordpress.org/changeset/3473781/powerpress.