CVE-2025-9988: Unauthorized Access in Broadstreet WordPress Plugin
Platform
wordpress
Component
broadstreet
Fixed in
1.53.2
CVE-2025-9988 is a medium-severity vulnerability affecting the Broadstreet WordPress plugin. It allows authenticated users with Subscriber-level access or higher to create advertisers without proper authorization, potentially leading to malicious content or advertising. This vulnerability impacts versions 0.0 through 1.53.1 and has been resolved in version 1.53.2.
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Impact and Attack Scenarios
The primary impact of CVE-2025-9988 is the ability for unauthorized users to create advertisers within the Broadstreet plugin. An attacker, already logged in with a Subscriber account (a common WordPress user role), can leverage this vulnerability to inject malicious advertisements or content. This could be used for phishing attacks, spreading malware, or defacing the website. The blast radius is limited to the website using the Broadstreet plugin and the potential impact on its users and visitors. While not a direct system compromise, the ability to inject malicious advertisements can have significant reputational and financial consequences for the website owner.
Exploitation Context
CVE-2025-9988 is not currently listed on KEV or EPSS, suggesting a low to medium probability of active exploitation. Public proof-of-concept (POC) code is not widely available, but the vulnerability's simplicity makes it likely that exploits could be developed. The vulnerability was published on 2026-05-13, so monitoring for exploitation attempts is advised. The vulnerability's reliance on authenticated access limits its exploitability compared to vulnerabilities that do not require authentication.
Threat Intelligence
Exploit Status
CISA SSVC
CVSS Vector
What do these metrics mean?
- Attack Vector
- Network — remotely exploitable over the internet. No physical or local access required. Widest attack surface.
- Attack Complexity
- Low — no special conditions required. Attacker can exploit reliably without depending on rare configurations or timing.
- Privileges Required
- Low — any valid user account is sufficient. Basic authenticated access required.
- User Interaction
- None — attack is automatic and silent. Victim does nothing: no click, no file open.
- Scope
- Unchanged — impact is limited to the vulnerable component itself.
- Confidentiality
- None — no confidentiality impact. Attacker cannot read protected data.
- Integrity
- Low — attacker can modify some data with limited scope or impact.
- Availability
- None — no availability impact. Service remains fully operational.
Affected Software
Weakness Classification (CWE)
Timeline
- Reserved
- Published
Mitigation and Workarounds
The recommended mitigation for CVE-2025-9988 is to immediately upgrade the Broadstreet WordPress plugin to version 1.53.2 or later. If upgrading is not immediately feasible due to compatibility issues or breaking changes, consider temporarily restricting advertiser creation privileges to administrators only through WordPress user role management. While not a complete fix, this can reduce the attack surface. There are no specific WAF rules or detection signatures readily available for this vulnerability, as it relies on user authentication and plugin functionality. After upgrading, verify the fix by logging in as a Subscriber user and attempting to create an advertiser; the action should be denied.
How to fix
Update to version 1.53.2, or a newer patched version
Frequently asked questions
What is CVE-2025-9988 — Unauthorized Access in Broadstreet WordPress Plugin?
CVE-2025-9988 is a medium-severity vulnerability in the Broadstreet WordPress plugin allowing authenticated subscribers to create advertisers without proper authorization, potentially leading to malicious content.
Am I affected by CVE-2025-9988 in Broadstreet WordPress Plugin?
You are affected if you are using the Broadstreet WordPress plugin in versions 0.0 through 1.53.1. Upgrade to 1.53.2 or later to mitigate the risk.
How do I fix CVE-2025-9988 in Broadstreet WordPress Plugin?
Upgrade the Broadstreet WordPress plugin to version 1.53.2 or later. If immediate upgrade is not possible, restrict advertiser creation privileges to administrators only.
Is CVE-2025-9988 being actively exploited?
While there is no widespread evidence of active exploitation, the vulnerability's simplicity suggests it could be targeted. Monitoring for exploitation attempts is recommended.
Where can I find the official Broadstreet advisory for CVE-2025-9988?
Refer to the official Broadstreet plugin documentation and WordPress plugin repository for the latest advisory and update information: [https://wordpress.org/plugins/broadstreet/](https://wordpress.org/plugins/broadstreet/)
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