Vulnerability · Published Jun 25, 2026 · Assigned by VulnCheck

CVE-2026-56772NewsBlur < 14.5.0 - Insecure Direct Object Reference in Social Interactions Endpoint

Medium 4.3

In plain English

A medium-severity authorization bypass via user-controlled key in NewsBlur from samuelclay. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 73.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
samuelclay	NewsBlur	0 – before 14.5.0

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

Release Notes release-notes
Patch Commit patch
https://www.vulncheck.com/advisories/newsblur-insecure-direct-object-reference-in-social-interactions-endpoint third-party-advisory