What is the CVSS score of CVE-2025-0839?

CVE-2025-0839 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: 0.1%.

Which versions of PHP are affected by CVE-2025-0839?

Organizations using for WordPress is vulnerable to Stored Cross-Site Scripting via shortcodes in should be aware of moderate risk from CVE-2025-0839, a cross-site scripting vulnerability rated CVSS…

How to fix or mitigate CVE-2025-0839?

Within 30 days: Identify affected systems running for WordPress is vulnerable to Stored Cross-Site Scripting v and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

PHP CVE-2025-0839

MEDIUM

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

2025-04-05 security@wordfence.com

PHP WordPress XSS Zoomsounds

6.4

CVSS 3.1

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

Analysis Generated

Mar 28, 2026 - 18:35 vuln.today

CVE Published

Apr 05, 2025 - 06:15 nvd

MEDIUM 6.4

DescriptionNVD

The ZoomSounds plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcodes in versions up to, and including, 6.91 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

AnalysisAI

The ZoomSounds plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcodes in versions up to, and including, 6.91 due to insufficient input sanitization and output escaping on. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The ZoomSounds plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcodes in versions up to, and including, 6.91 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Affected products include: Digitalzoomstudio Zoomsounds.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

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CVE-2025-0839 vulnerability details – vuln.today

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