CVE-2025-9988 - CVE House
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Status published Medium CVE-2025-9988

Broadstreet <= 1.53.1 - Missing Authorization to Authenticated (Subscriber+) Advertiser Creation

Vulnerability Description

The Broadstreet plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the create_advertiser AJAX action in all versions up to, and including, 1.53.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to create advertisers.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • greenhats

References

More from broadstreetads

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CVE-2025-9989
Broadstreet <= 1.53.1 - Authenticated (Admin+) Stored Cross-Site Scripting
Medium 4.4
CVE-2025-9987
Broadstreet <= 1.53.1 - Authenticated (Subscriber+) Information Disclosure
Medium 5.3
CVE-2024-11825
Broadstreet <= 1.51.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via zone Parameter
Medium 6.4

Affected Vendor

broadstreetads

View all reports →

Affected Software

Broadstreet
Vulnerable Versions:
0

Timeline

Official Publish: May 13th, 2026
Last Modified: May 13th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weaknesses (CWE)

CWE-285

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1078 Valid Accounts
Persistence
T1548 Abuse Elevation Control Mechanism
Privilege Escalation
T1021 Remote Services
Lateral Movement
T1098 Account Manipulation
Defense Evasion