CVE-2026-56772 NewsBlur < 14.5.0 - Insecure Direct Object Reference in Social Interactions Endpoint
Authenticated users can read private social activity of other users by manipulating user_id parameters in the interactions endpoint.
- 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-2026-56772?
CVE-2026-56772 is a medium-severity missing authorization vulnerability in samuelclay NewsBlur, published on 25 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
NewsBlur before 14.5.0 contains a broken access control vulnerability that allows authenticated users to read private notification feeds by supplying arbitrary user_id values to the GET /social/interactions endpoint without ownership verification. Attackers can enumerate user_id values to access another user's follows, replies, and social activity without authorization.
Weakness: CWE-639
Which versions are affected by CVE-2026-56772?
How do I fix CVE-2026-56772?
No fix has been published for CVE-2026-56772 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-56772 being exploited?
There is no known exploitation of CVE-2026-56772 in the wild and no public exploit code.
Sources
Also known as GHSA-vg32-rqh8-j8pm.