Description
An insecure direct object reference vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to write to any contact record via the updatecontacttour Parse cloud function. The function performs no authentication or authorization before updating the target contact record. An attacker can corrupt or overwrite contact data for any user in the system without credentials.
Published: 2026-08-11
Score: 7.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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References
Link Providers
https://github.com/OpenSignLabs/OpenSign cve-icon
History

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 write to any contact record via the updatecontacttour Parse cloud function. The function performs no authentication or authorization before updating the target contact record. An attacker can corrupt or overwrite contact data for any user in the system 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:N/I:H/A:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: TuranSec

Published:

Updated: 2026-08-11T11:09:17.003Z

Reserved: 2026-08-10T10:32:49.081Z

Link: CVE-2026-72545

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses