Lleidanet PKI eSigna up to 5.4.0 SignaViewer authorization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Lleidanet PKI eSigna up to 5.4.0. This impacts an unknown function of the component SignaViewer Component. The manipulation leads to authorization. This vulnerability is referenced as CVE-2025-4762. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Lleidanet PKI eSigna up to 5.4.0 and classified as problematic. This issue affects an unknown functionality of the component SignaViewer Component. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. Impacted is confidentiality. The summary by CVE is:

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.

The weakness was published by Pablo Alcarria Lozano. The advisory is shared at edgewatch.com. The identification of this vulnerability is CVE-2025-4762 since 05/15/2025. The exploitation is known to be difficult. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available.

Upgrading to version 1.3.2, 1.4.4, 4.0.4, 4.1.4, 5.0.2, 5.1.2, 5.2.4, 5.3.3 or 5.4.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-15151). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Lleidanet PKI

Name

• eSigna

Version

• 1.3.0
• 1.3.1
• 1.4.0
• 1.4.1
• 1.4.2
• 1.4.3
• 4.0.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 5.0
• 5.0.0
• 5.0.1
• 5.1
• 5.1.0
• 5.1.1
• 5.2
• 5.2.0
• 5.2.1
• 5.2.2
• 5.2.3
• 5.3
• 5.3.0
• 5.3.1
• 5.3.2
• 5.4.0

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion