CVE-2026-72544
OpenSignLabs OpenSign - Insufficient Verification of Data Authenticity
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
An integrity verification vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to forge document audit-trail entries via the triggerevent Parse cloud function. The function accepts viewer identity and IP address as caller-supplied parameters without authentication, allowing fabrication of arbitrary audit log entries. An attacker can tamper with the legal audit trail of any signed document, undermining non-repudiation.
| CWE | CWE-345 |
| Vendor | opensignlabs |
| Product | opensign |
| Published | Aug 11, 2026 |
| Last Updated | Aug 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
OpenSignLabs / OpenSign
0 ≤ 2.37.0
Credits
Bobur Abdugafforov (Mahadsec)