CVE-2025-4762Network attack vector

File disclosure via unchecked object references

Published May 15, 2025 · Updated May 15, 2025

IDOR in eSignaViewer in Lleidanet PKI eSigna 1.0 through 1.5 allows remote attackers to read arbitrary document-system files. The component accepts user-controlled file paths and document identifiers without sufficient authorization checks, resolving references to files outside the requester's permitted objects. No authentication is required, and successful requests disclose file contents without reported modification or service interruption.

CVSS severity2.0
Low
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in eSignaViewer in Lleidanet PKI eSigna 1.0 through 1.5 allows remote attackers to read arbitrary document-system files. The component accepts user-controlled file paths and document identifiers without sufficient authorization checks, resolving references to files outside the requester's permitted objects. No authentication is required, and successful requests disclose file contents without reported modification or service interruption.

The record

CVE
CVE-2025-4762
Published
May 15, 2025
Updated
May 15, 2025
Vendor
Lleidanet PKI
Product
eSigna Platform
Classifications
CWE-20, CAPEC-122, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2025CVE publishedPublication date reported by the CVE source.
  2. May 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Lleidanet PKI · eSigna PlatformAffected versions are unavailable in this record.

Published CVSS scores

2.0EdgewatchCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CAPEC-122Insecure Direct Object Reference
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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