CVE-2026-72545

OpenSignLabs OpenSign (affected up to v2.37.0) has an Insecure Direct Object Reference via the updatecontacttour Parse cloud function. The function performs no authentication or authorization, allowing unauthenticated remote attackers to write to any user contact record, potentially corrupting or...

CVE-2026-72545: Authorization Bypass Through User-Controlled Key

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...