CVE-2026-72545

HighCVSS 7.5/10Last modified Oct 24, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-639

Affected software

No affected versions have been published.

Timeline

Published: Aug 11, 2026
Last modified: Oct 24, 2026
NVD status: Deferred

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