VDB-245122 · CVE-2023-43901 · EUVD-2023-48261

EMSigner 2.8.7 AdHoc User Creation Form access control

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in EMSigner 2.8.7. This impacts an unknown function of the component AdHoc User Creation Form. Executing a manipulation can lead to access control. This vulnerability is tracked as CVE-2023-43901. No exploit exists.

Detailsinfo

A vulnerability was found in EMSigner 2.8.7. It has been declared as critical. This vulnerability affects an unknown part of the component AdHoc User Creation Form. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect integrity. CVE summarizes:

Incorrect access control in the AdHoc User creation form of EMSigner v2.8.7 allows unauthenticated attackers to arbitrarily modify usernames and privileges by using the email address of a registered user.

The weakness was disclosed 11/14/2023. The advisory is available at secpro.llc. This vulnerability was named CVE-2023-43901 since 09/25/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-48261). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

EMSigner

Version

2.8.7

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/25/2023 🔍
11/14/2023 +50 days 🔍
11/14/2023 +0 days 🔍
02/08/2026 +817 days 🔍

Sourcesinfo

Advisory: secpro.llc
Status: Not defined

CVE: CVE-2023-43901 (🔍)
GCVE (CVE): GCVE-0-2023-43901
GCVE (VulDB): GCVE-100-245122
EUVD: 🔍

Entryinfo

Created: 11/14/2023 08:26
Updated: 02/08/2026 11:04
Changes: 11/14/2023 08:26 (37), 12/08/2023 08:57 (11), 09/03/2024 20:44 (16), 02/08/2026 11:04 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.