VirtFusion up to 6.0.2 Email Change /account/_settings excessive authentication
Summary
A vulnerability, which was classified as problematic, was found in VirtFusion up to 6.0.2. This issue affects some unknown processing of the file /account/_settings of the component Email Change Handler. The manipulation results in excessive authentication. This vulnerability is reported as CVE-2025-12310. The attack can be launched remotely. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability was found in VirtFusion up to 6.0.2. It has been classified as problematic. Affected is some unknown functionality of the file /account/_settings of the component Email Change Handler. The manipulation with an unknown input leads to a excessive authentication vulnerability. CWE is classifying the issue as CWE-307. The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks. This is going to have an impact on integrity.
This vulnerability is traded as CVE-2025-12310. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. This vulnerability is assigned to T1110.001 by the MITRE ATT&CK project.
It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
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Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.0
VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 5.3
CNA Vector: 🔒
CVSSv2
| 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: 🔍
Exploiting
Class: Excessive authenticationCWE: CWE-307 / CWE-799 / CWE-400
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
10/26/2025 Advisory disclosed10/26/2025 VulDB entry created
10/28/2025 VulDB entry last update
Sources
Status: Not definedCVE: CVE-2025-12310 (🔒)
GCVE (CVE): GCVE-0-2025-12310
GCVE (VulDB): GCVE-100-329982
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 10/26/2025 18:20Updated: 10/28/2025 10:15
Changes: 10/26/2025 18:20 (53), 10/28/2025 10:15 (31)
Complete: 🔍
Submitter: 0xfun
Cache ID: 216::103
Submit
Accepted
- Submit #676825: VirtFusion Ltd. VirtFusion 6.0.2 Authentication / Broken Authentication (Brute-forceable OTP / Mi (by 0xfun)
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