CVE-2026-35023

Wimi Teamwork On-Premises < 8.2.0 IDOR via preview.php

MEDIUM
4.3
CVSS Score
Published: April 8, 2026 at 12:59 PM UTC
Updated: July 24, 2026 at 09:10 PM UTC
2 products affected across 2 vendorsWimi TeamworkWimi Teamwork

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Wimi Teamwork On-Premises versions prior to 8.2.0 contain an insecure direct object reference vulnerability in the preview.php endpoint where the item_id parameter lacks proper authorization checks. Attackers can enumerate sequential item_id values to access and retrieve image previews from other users' private or group conversations, resulting in unauthorized disclosure of sensitive information.

Affected

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

v < 8.2.0
Affected range stops below 8.2.0, so it looks safe — our inference, not a vendor statement
v < 8.2.0
Affected range stops below 8.2.0, 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

StatusANALYZED
CWE
CWE-639

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