What is the CVSS score of CVE-2025-9989?

CVE-2025-9989 has a CVSS 3.1 base score of 4.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Broadstreet WordPress Plugin CVE-2025-9989

EUVD-2025-209820 MEDIUM

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

2026-05-13 Wordfence

WordPress XSS Broadstreet Wordpress Plugin Broadstreetads

4.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

May 13, 2026 - 05:31 vuln.today

CVE Published

May 13, 2026 - 04:26 nvd

MEDIUM 4.4

DescriptionCVE.org

The Broadstreet plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.53.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

AnalysisAI

Stored Cross-Site Scripting in Broadstreet plugin for WordPress versions up to 1.53.1 allows authenticated administrators to inject arbitrary JavaScript into admin settings that executes for all users viewing affected pages. The vulnerability requires administrator-level access, high attack complexity due to disabled unfiltered_html or multi-site configuration restrictions, and impacts confidentiality and integrity with limited scope. No active exploitation confirmed at time of analysis.

Technical ContextAI

The Broadstreet WordPress plugin fails to properly sanitize user input in administrative settings and does not adequately escape output when rendering those settings in the WordPress admin interface. The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation), a stored XSS variant where malicious scripts persist in the WordPress database via the plugin's settings mechanism. This affects installations where WordPress has restricted unfiltered_html capability (the default in multi-site and hardened single-site configurations), meaning administrators cannot directly insert raw HTML but the plugin's insufficient escaping allows them to bypass this restriction via its settings interface. The injected payload executes in the context of the WordPress admin panel and potentially across the site depending on where settings are displayed.

RemediationAI

Update the Broadstreet plugin to version 1.53.2 or later, which implements proper input sanitization and output escaping for admin settings (patch confirmed via WordPress plugin changelog at https://plugins.trac.wordpress.org/changeset/3524817). For organizations unable to immediately patch, restrict the administrator role to a minimal set of trusted users and implement audit logging on admin setting changes via WordPress security plugins or server-level access controls; however, this does not prevent exploitation by legitimate administrators and should be considered a temporary compensating control only. Additionally, verify that unfiltered_html capability is intentionally disabled and review the necessity of multi-site configuration, as disabling multi-site and enabling unfiltered_html (if security policy permits) eliminates the conditions required for exploitation. Wordfence security advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/f9b6e9a7-1ac5-45d0-83c3-a3f79935904a?source=cve contains additional context on the vulnerability and patch release notes.