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Description

A security vulnerability has been detected in LinkStackOrg LinkStack up to 4.8.6. The affected element is the function saveLink of the file app/Http/Controllers/UserController.php of the component Management Endpoint. The manipulation leads to authorization bypass. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The pull request to fix this issue awaits acceptance.

PUBLISHED Reserved 2026-04-30 | Published 2026-04-30 | Updated 2026-05-01 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C
MEDIUM: 5.4CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C
5.5AV:N/AC:L/Au:S/C:N/I:P/A:P/E:POC/RL:ND/RC:C

Problem types

Authorization Bypass

Improper Authorization

Product status

4.8.0
affected

4.8.1
affected

4.8.2
affected

4.8.3
affected

4.8.4
affected

4.8.5
affected

4.8.6
affected

Timeline

2026-04-30:Advisory disclosed
2026-04-30:VulDB entry created
2026-04-30:VulDB entry last update

Credits

AliAz (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/360312 (VDB-360312 | LinkStackOrg LinkStack Management Endpoint UserController.php saveLink authorization) vdb-entry technical-description

vuldb.com/vuln/360312/cti (VDB-360312 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/801787 (Submit #801787 | LinkStackOrg LinkStack 4.8.6 Authorization Bypass) third-party-advisory

github.com/LinkStackOrg/LinkStack/pull/975 issue-tracking patch

github.com/LinkStackOrg/LinkStack/pull/975 issue-tracking patch

github.com/...ecurity-advisories/blob/main/idor_linkstack.md exploit

github.com/LinkStackOrg/LinkStack/ product

cve.org (CVE-2026-7502)

nvd.nist.gov (CVE-2026-7502)

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