high7.5
CVE-2026-72543
An insecure direct object reference vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to retrieve any contact recor…
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| OpenSignLabs OpenSign | through 2.37.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.