CVE-2025-9988Network attack vector

Subscriber-level advertiser creation via unchecked AJAX action

Published May 13, 2026 · Updated May 13, 2026

Improper authorization in the Broadstreet plugin for WordPress 1.53.1 and earlier allows remote authenticated users to create advertisers. The create_advertiser AJAX action processes requests without checking the caller's WordPress capability before creating an advertiser. Any authenticated Subscriber-level account can reach the action and add advertiser records, but no broader data access or privilege escalation is reported.

CVSS severity4.3
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in the Broadstreet plugin for WordPress 1.53.1 and earlier allows remote authenticated users to create advertisers. The create_advertiser AJAX action processes requests without checking the caller's WordPress capability before creating an advertiser. Any authenticated Subscriber-level account can reach the action and add advertiser records, but no broader data access or privilege escalation is reported.

The record

CVE
CVE-2025-9988
Published
May 13, 2026
Updated
May 13, 2026
Vendor
Broadstreet Ads, Inc.
Product
Broadstreet
Classifications
CWE-285, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 13, 2026CVE publishedPublication date reported by the CVE source.
  2. May 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.53.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Broadstreet Ads, Inc. · Broadstreetversion=0 <=1.53.1

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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