LinkStackOrg LinkStack up to 4.8.6 Management Endpoint UserController.php saveLink authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in LinkStackOrg LinkStack up to 4.8.6. The impacted element is the function saveLink of the file app/Http/Controllers/UserController.php of the component Management Endpoint. The manipulation results in authorization. This vulnerability is reported as CVE-2026-7502. The attack can be launched remotely. Moreover, an exploit is present. The pull request to fix this issue awaits acceptance.

Detailsinfo

A vulnerability was found in LinkStackOrg LinkStack up to 4.8.6. It has been classified as critical. Affected is the function saveLink of the file app/Http/Controllers/UserController.php of the component Management Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-7502. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The pull request to fix this issue awaits acceptance. By approaching the search of inurl:app/Http/Controllers/UserController.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.4
VulDB Temp Score: 5.1
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: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
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: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/30/2026 Advisory disclosed
04/30/2026 +0 days VulDB entry created
04/30/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 975
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-7502 (🔒)
GCVE (CVE): GCVE-0-2026-7502
GCVE (VulDB): GCVE-100-360312
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/30/2026 16:43
Changes: 04/30/2026 16:43 (59)
Complete: 🔍
Submitter: AliAz
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #801787: LinkStackOrg LinkStack 4.8.6 Authorization Bypass (by AliAz)

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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