What’s Vulnerable › Vulnerabilities

CVE-2026-7502: LinkStackOrg LinkStack Management Endpoint UserController.php saveLink authorization

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-30 · updated 2026-10-26
• Weakness: CWE-285

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.

Affected products

• LinkStackOrg LinkStack: 4.8.0, 4.8.1, 4.8.2, 4.8.3, 4.8.4, 4.8.5 (+1)

References

• https://github.com/LinkStackOrg/LinkStack/
• https://github.com/LinkStackOrg/LinkStack/pull/975
• https://github.com/LinkStackOrg/LinkStack/pull/975#issuecomment-4224234970
• https://github.com/az10b/security-advisories/blob/main/idor_linkstack.md
• https://vuldb.com/submit/801787
• https://vuldb.com/vuln/360312
• https://vuldb.com/vuln/360312/cti

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