Insecure Direct Object Reference (IDOR) vulnerability in eSignaViewer
Priority LOW 11CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Active
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Insecure Direct Object Reference (IDOR) vulnerability in the eSignaViewer component in eSigna product versions 1.0 to 1.5 on all platforms allow an unauthenticated attacker to access arbitrary files in the document system via manipulation of file paths and object identifiers.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0034 27th percentileScored 2026-11-07
Fix Fixed eSigna (Lleidanet PKI): 1.3.2, 1.4.4, 4.0.4 +6
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Lleidanet PKI | eSigna | — | 1.3.2, 1.4.4, 4.0.4, 4.1.4, 5.0.2, 5.1.2, 5.2.4, 5.3.3, 5.4.1 | Patch available | CNA |
- eSigna VendorLleidanet PKI Affected — Fixed in 1.3.2, 1.4.4, 4.0.4, 4.1.4, 5.0.2, 5.1.2, 5.2.4, 5.3.3, 5.4.1 Patch available CNA
Remediation
- Fix · CNA eSigna (Lleidanet PKI) Fixed in 1.3.2, 1.4.4, 4.0.4, 4.1.4, 5.0.2, 5.1.2, 5.2.4, 5.3.3, 5.4.1
Timeline
- 2026-10-02 Threatist record created from CVE-2025-4762
- 2026-10-03 Alias added: GHSA-8vfv-f6xm-p6cm
References
More Lleidanet PKI vulnerabilities
- TI-2024-11147 Path Traversal vulnerability in eSignaViewer Allow Unauthorized File Access CVSS 4.0LOW 2.0
Sources
- CVE-2025-4762 · CVE Program
- CVE-2025-4762 · NVD
- FIRST EPSS
- GHSA-8vfv-f6xm-p6cm · GitHub Advisory Database · CC BY 4.0
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