CVE-2026-56772

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

MEDIUM
4.3
CVSS Score
Published: June 25, 2026 at 06:08 PM UTC
Updated: October 25, 2026 at 10:10 PM UTC
1 product affected across 1 vendorNewsBlur

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 14.5.0
Affected range stops below 14.5.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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