An insecure direct object reference vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to retrieve any contact record via the getcontact Parse cloud function. The function executes with useMasterKey and performs no authentication or authorization checks before returning the requested contact object. An attacker can enumerate and read all contact records including personally identifiable information without credentials.

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References
History

Tue, 11 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 11 Aug 2026 11:30:00 +0000

Type Values Removed Values Added
Description An insecure direct object reference vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to retrieve any contact record via the getcontact Parse cloud function. The function executes with useMasterKey and performs no authentication or authorization checks before returning the requested contact object. An attacker can enumerate and read all contact records including personally identifiable information without credentials.
Title OpenSignLabs OpenSign - Insecure Direct Object Reference
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: TuranSec

Published:

Updated: 2026-08-11T14:48:32.244Z

Reserved: 2026-08-10T10:32:49.080Z

Link: CVE-2026-72543

cve-icon Vulnrichment

Updated: 2026-08-11T14:48:11.878Z

cve-icon NVD

Status : Received

Published: 2026-08-11T12:17:39.727

Modified: 2026-08-11T15:17:35.407

Link: CVE-2026-72543

cve-icon Redhat

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cve-icon OpenCVE Enrichment

No data.

Weaknesses