CVE-2026-7502: Authorization Bypass in LinkStackOrg LinkStack
CVE-2026-7502 is an authorization bypass vulnerability in LinkStackOrg LinkStack versions up to 4.8.6. The flaw exists in the saveLink function within the UserController.php file of the Management Endpoint component. This vulnerability can be exploited remotely without user interaction and allows an attacker with limited privileges to bypass authorization controls. A public exploit disclosure exists, but no official fix has yet been released, although a pull request for a fix is pending acceptance. The vulnerability has a medium severity rating with a CVSS 4.0 score of 5.3.
AI Analysis
Technical Summary
LinkStackOrg LinkStack versions 4.8.0 through 4.8.6 contain an authorization bypass vulnerability in the saveLink function of app/Http/Controllers/UserController.php. This flaw allows remote attackers with limited privileges to bypass authorization checks, potentially enabling unauthorized actions within the Management Endpoint component. The vulnerability is publicly disclosed, and a fix is pending but not yet officially released. No patch or vendor advisory is currently available, and the product is not a cloud service.
Potential Impact
An attacker with limited privileges can remotely bypass authorization controls in the affected LinkStack versions, potentially performing unauthorized operations via the saveLink function. This could lead to unauthorized modification or creation of links managed by the application. There are no confirmed exploits in the wild at this time.
Mitigation Recommendations
No official patch or remediation is currently available. A pull request containing a fix has been submitted but awaits acceptance. Users should monitor the vendor's repository or advisory channels for the official fix release. Until then, consider restricting access to the Management Endpoint and applying additional access controls where possible to limit exposure.
CVE-2026-7502: Authorization Bypass in LinkStackOrg LinkStack
Description
CVE-2026-7502 is an authorization bypass vulnerability in LinkStackOrg LinkStack versions up to 4.8.6. The flaw exists in the saveLink function within the UserController.php file of the Management Endpoint component. This vulnerability can be exploited remotely without user interaction and allows an attacker with limited privileges to bypass authorization controls. A public exploit disclosure exists, but no official fix has yet been released, although a pull request for a fix is pending acceptance. The vulnerability has a medium severity rating with a CVSS 4.0 score of 5.3.
CVSS v4.0
Score 5.3medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
LinkStackOrg LinkStack versions 4.8.0 through 4.8.6 contain an authorization bypass vulnerability in the saveLink function of app/Http/Controllers/UserController.php. This flaw allows remote attackers with limited privileges to bypass authorization checks, potentially enabling unauthorized actions within the Management Endpoint component. The vulnerability is publicly disclosed, and a fix is pending but not yet officially released. No patch or vendor advisory is currently available, and the product is not a cloud service.
Potential Impact
An attacker with limited privileges can remotely bypass authorization controls in the affected LinkStack versions, potentially performing unauthorized operations via the saveLink function. This could lead to unauthorized modification or creation of links managed by the application. There are no confirmed exploits in the wild at this time.
Mitigation Recommendations
No official patch or remediation is currently available. A pull request containing a fix has been submitted but awaits acceptance. Users should monitor the vendor's repository or advisory channels for the official fix release. Until then, consider restricting access to the Management Endpoint and applying additional access controls where possible to limit exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-30T14:38:49.163Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f3cb59cbff5d86108f8840
Added to database: 4/30/2026, 9:36:25 PM
Last enriched: 5/8/2026, 2:17:06 AM
Last updated: 6/15/2026, 3:13:37 AM
Views: 72
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