CVE-2026-1881 Broadstreet <= 1.52.2 - Authenticated (Subscriber+) Private Post Meta Disclosure via get_sponsored_meta

Medium 4.3 Published Updated

Authenticated subscribers can disclose private post metadata in the Broadstreet WordPress plugin due to missing validation on user-controlled keys.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-1881?

CVE-2026-1881 is a medium-severity vulnerability in broadstreetads Broadstreet, published on 21 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Broadstreet plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.52.2 via the get_sponsored_meta AJAX action due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to disclose any private post metadata.

Weakness: CWE-639

Which versions are affected by CVE-2026-1881?

How do I fix CVE-2026-1881?

No fix has been published for CVE-2026-1881 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-1881 being exploited?

There is no known exploitation of CVE-2026-1881 in the wild and no public exploit code.

Sources

Also known as GHSA-2rfp-x828-47hv.

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