Vulnerability · Published Apr 8, 2026 · Assigned by VulnCheck

CVE-2026-35023Wimi Teamwork On-Premises < 8.2.0 IDOR via preview.php

Medium 4.3

In plain English

A medium-severity authorization bypass via user-controlled key in Wimi Teamwork from Cloud Solutions SAS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 92.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 products (as reported)

Vendor	Product	Versions
Cloud Solutions SAS	Wimi Teamwork	0 – before 8.2.0

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

References

https://www.wimi-teamwork.com/en/product-update release-notes, patch
https://www.vulncheck.com/advisories/wimi-teamwork-on-premises-idor-via-preview-php third-party-advisory