Insecure Direct Object Reference in Broadstreet WordPress Plugin
CVE-2026-1881

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
Broadstreet
Vendor
CVE Published:
21 May 2026

What is CVE-2026-1881?

The Broadstreet plugin for WordPress contains an Insecure Direct Object Reference vulnerability that affects all versions up to and including 1.52.2. This vulnerability arises from insufficient validation on a user-controlled key in the get_sponsored_meta AJAX action. As a result, authenticated attackers with Subscriber-level access and above can exploit this flaw to access and disclose private post metadata, posing a significant threat to user privacy and data integrity.

Affected Version(s)

Broadstreet 0 <= 1.52.2

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset?old_path=%2F...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

TarcĂ­sio Luchesi De Almeida Silva
.