VDB-245124 · CVE-2023-43902 · EUVD-2023-48262

EMSigner 2.8.7 password recovery

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.
8.0	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in EMSigner 2.8.7. Affected by this vulnerability is an unknown functionality. The manipulation results in password recovery. This vulnerability is cataloged as CVE-2023-43902. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in EMSigner 2.8.7. Affected is an unknown code block. The manipulation with an unknown input leads to a password recovery vulnerability. CWE is classifying the issue as CWE-640. The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak. The impact remains unknown. CVE summarizes:

Incorrect access control in the Forgot Your Password function of EMSigner v2.8.7 allows unauthenticated attackers to access accounts of all registered users, including those with administrator privileges via a crafted password reset token.

The weakness was shared 11/14/2023. The advisory is shared for download at secpro.llc. This vulnerability is traded as CVE-2023-43902 since 09/25/2023. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/08/2026). The MITRE ATT&CK project declares the attack technique as T1552.

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-2023-48262). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

EMSigner

Version

2.8.7

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 8.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: Password recovery
CWE: CWE-640
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-2023-43902 (🔍)
GCVE (CVE): GCVE-0-2023-43902
GCVE (VulDB): GCVE-100-245124
EUVD: 🔍

Entryinfo

Created: 11/14/2023 08:27
Updated: 02/08/2026 11:04
Changes: 11/14/2023 08:27 (35), 12/08/2023 09:01 (11), 01/08/2025 21:19 (16), 02/08/2026 11:04 (1)
Complete: 🔍
Cache ID: 216::103