Cloud Solutions SAS Wimi Teamwork up to 8.1.x Image Preview preview.php item_id authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cloud Solutions SAS Wimi Teamwork up to 8.1.x. The impacted element is an unknown function of the file preview.php of the component Image Preview Handler. The manipulation of the argument item_id leads to authorization. This vulnerability is documented as CVE-2026-35023. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cloud Solutions SAS Wimi Teamwork up to 8.1.x. This issue affects an unknown functionality of the file preview.php of the component Image Preview Handler. The manipulation of the argument item_id with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. Impacted is confidentiality. The summary by CVE is:

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.

The weakness was released by Noa Tchoumak. It is possible to read the advisory at wimi-teamwork.com. The identification of this vulnerability is CVE-2026-35023 since 03/31/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit.

By approaching the search of inurl:preview.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 8.2.0 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-639 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Wimi Teamwork 8.2.0

Timelineinfo

03/31/2026 CVE reserved
04/08/2026 +8 days Advisory disclosed
04/08/2026 +0 days VulDB entry created
04/08/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wimi-teamwork.com
Researcher: Noa Tchoumak
Status: Confirmed

CVE: CVE-2026-35023 (🔒)
GCVE (CVE): GCVE-0-2026-35023
GCVE (VulDB): GCVE-100-356231

Entryinfo

Created: 04/08/2026 16:02
Changes: 04/08/2026 16:02 (70)
Complete: 🔍
Cache ID: 216:B1F:103

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