CVE-2026-35023

Medium

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.

SeverityMedium

CVSS4.3

Exploit probability—

ProductWimi-teamwork

PublishedApr 8, 2026

First seenApr 8, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

wimi-teamwork wimi-teamwork8.2.0 or later

Patches

wimi-teamwork.com/en/product-update

Affected products

Product	Affected versions	Fixed in
wimi-teamwork wimi-teamwork	v < 8.2.0	8.2.0

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