CVE-2026-72545 — OpenSignLabs OpenSign - Insecure Direct Object Reference
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 updateco…
Published: 2026-08-11 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7