blueprintue Self-Hosted Edition up to 4.3.2 Forgot Password Middleware ForgotPasswordMiddleware.php information disclosure

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 (≈)
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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.
5.2$0-$5k0.35+

Summaryinfo

A vulnerability, which was classified as problematic, has been found in blueprintue Self-Hosted Edition up to 4.3.2. This impacts an unknown function of the file ForgotPasswordMiddleware.php of the component Forgot Password Middleware. Performing a manipulation results in information disclosure. This vulnerability is reported as CVE-2026-122139. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in blueprintue Self-Hosted Edition up to 4.3.2. It has been classified as problematic. This affects an unknown functionality of the file ForgotPasswordMiddleware.php of the component Forgot Password Middleware. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

blueprintUE Self-Hosted Edition before 4.3.3 contains an account enumeration vulnerability in ForgotPasswordMiddleware.php that allows unauthenticated attackers to identify registered email addresses. Attackers can compare password reset redirect targets for submitted emails, and failed lookups are never rate-limited, enabling unlimited enumeration attempts.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-122139 since 11/04/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

By approaching the search of inurl:ForgotPasswordMiddleware.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 4.3.3 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Self-Hosted Edition 4.3.3

Timelineinfo

11/04/2026 Advisory disclosed
11/04/2026 +0 days CVE reserved
11/04/2026 +0 days VulDB entry created
11/04/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CNA: VulnCheck
CVE: CVE-2026-122139 (🔒)

GCVE (CVE): GCVE-0-2026-122139
GCVE (VulDB): GCVE-100-431187

Entryinfo

Created: 11/04/2026 21:54
Changes: 11/04/2026 21:54 (77)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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