CVE-2026-35023: CWE-639 Authorization Bypass Through User-Controlled Key in Cloud Solutions SAS Wimi Teamwork
Wimi Teamwork On-Premises versions prior to 8. 2. 0 have an authorization bypass vulnerability in the preview. php endpoint. The item_id parameter does not have proper authorization checks, allowing attackers to enumerate sequential item_id values. This can lead to unauthorized access to image previews from other users' private or group conversations, exposing sensitive information. The vulnerability is classified as CWE-639 (Authorization Bypass Through User-Controlled Key) and has a CVSS 4. 0 base score of 5. 3, indicating medium severity. No official patch or remediation guidance is currently available from the vendor.
AI Analysis
Technical Summary
CVE-2026-35023 is an insecure direct object reference vulnerability in Wimi Teamwork On-Premises versions before 8.2.0. The vulnerability exists in the preview.php endpoint where the item_id parameter lacks proper authorization checks. This allows an attacker with low privileges to enumerate item_id values sequentially and retrieve image previews from other users' private or group conversations without authorization. The vulnerability is categorized under CWE-639 and has a CVSS 4.0 score of 5.3, reflecting a medium security impact. The product is not cloud-hosted, and no official patch or remediation level has been published by the vendor as of the provided data.
Potential Impact
Exploitation of this vulnerability results in unauthorized disclosure of sensitive image previews from private or group conversations within Wimi Teamwork On-Premises. This could lead to privacy breaches and exposure of confidential information. The vulnerability requires no user interaction and can be exploited remotely with low privileges. However, the impact is limited to information disclosure without elevation of privileges or system compromise. There are no known exploits in the wild currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users of affected Wimi Teamwork On-Premises versions should monitor vendor communications for updates. In the meantime, restricting access to the preview.php endpoint and implementing additional authorization checks at the application or network level may help mitigate risk.
CVE-2026-35023: CWE-639 Authorization Bypass Through User-Controlled Key in Cloud Solutions SAS Wimi Teamwork
Description
Wimi Teamwork On-Premises versions prior to 8. 2. 0 have an authorization bypass vulnerability in the preview. php endpoint. The item_id parameter does not have proper authorization checks, allowing attackers to enumerate sequential item_id values. This can lead to unauthorized access to image previews from other users' private or group conversations, exposing sensitive information. The vulnerability is classified as CWE-639 (Authorization Bypass Through User-Controlled Key) and has a CVSS 4. 0 base score of 5. 3, indicating medium severity. No official patch or remediation guidance is currently available from the vendor.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-35023 is an insecure direct object reference vulnerability in Wimi Teamwork On-Premises versions before 8.2.0. The vulnerability exists in the preview.php endpoint where the item_id parameter lacks proper authorization checks. This allows an attacker with low privileges to enumerate item_id values sequentially and retrieve image previews from other users' private or group conversations without authorization. The vulnerability is categorized under CWE-639 and has a CVSS 4.0 score of 5.3, reflecting a medium security impact. The product is not cloud-hosted, and no official patch or remediation level has been published by the vendor as of the provided data.
Potential Impact
Exploitation of this vulnerability results in unauthorized disclosure of sensitive image previews from private or group conversations within Wimi Teamwork On-Premises. This could lead to privacy breaches and exposure of confidential information. The vulnerability requires no user interaction and can be exploited remotely with low privileges. However, the impact is limited to information disclosure without elevation of privileges or system compromise. There are no known exploits in the wild currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users of affected Wimi Teamwork On-Premises versions should monitor vendor communications for updates. In the meantime, restricting access to the preview.php endpoint and implementing additional authorization checks at the application or network level may help mitigate risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-03-31T20:40:15.618Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d737061cc7ad14da419558
Added to database: 4/9/2026, 5:20:06 AM
Last enriched: 4/9/2026, 5:27:58 AM
Last updated: 4/9/2026, 8:08:57 AM
Views: 6
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