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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| OpenSignLabs | OpenSign | affected |
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Project Subscriptions
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Advisories
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Fixes
Solution
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Workaround
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References
| Link | Providers |
|---|---|
| https://github.com/OpenSignLabs/OpenSign |
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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 |
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| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: TuranSec
Published:
Updated: 2026-08-11T11:09:17.003Z
Reserved: 2026-08-10T10:32:49.081Z
Link: CVE-2026-72545
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses