DeepMyst Mysti 0.4.0 Contact Tracking ChannelBridge.ts _isTrackedConversation _channelType improper authorization
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.5 | $0-$5k | 2.17- |
Summary
A vulnerability labeled as critical has been found in DeepMyst Mysti 0.4.0. Affected by this vulnerability is the function _isTrackedConversation of the file src/managers/ChannelBridge.ts of the component Contact Tracking. Such manipulation of the argument _channelType leads to improper authorization.
This vulnerability is traded as CVE-2026-13591. The attack may be launched remotely. Furthermore, there is an exploit available.
A patch should be applied to remediate this issue.
Details
A vulnerability was found in DeepMyst Mysti 0.4.0 and classified as critical. Affected by this issue is the function _isTrackedConversation of the file src/managers/ChannelBridge.ts of the component Contact Tracking. The manipulation of the argument _channelType with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability.
The advisory is available at github.com. This vulnerability is handled as CVE-2026-13591. The exploitation is known to be difficult. The attack may be launched remotely. Technical details as well as a public exploit are known. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.
The exploit is available at github.com. It is declared as proof-of-concept.
Applying the patch 9b4aff0f106db424aa45a35aa89dd0b8f2eb9a48 is able to eliminate this problem. The bugfix is ready for download at github.com.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Vendor
Name
Version
License
Website
- Product: https://github.com/DeepMyst/Mysti/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.0VulDB Meta Temp Score: 4.5
VulDB Base Score: 5.0
VulDB Temp Score: 4.5
VulDB Vector: 🔒
VulDB Reliability: 🔍
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: Improper authorizationCWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
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: PatchStatus: 🔍
0-Day Time: 🔒
Patch: 9b4aff0f106db424aa45a35aa89dd0b8f2eb9a48
Timeline
06/29/2026 Advisory disclosed06/29/2026 VulDB entry created
06/29/2026 VulDB entry last update
Sources
Product: github.comAdvisory: 42
Status: Confirmed
Confirmation: 🔒
CVE: CVE-2026-13591 (🔒)
GCVE (CVE): GCVE-0-2026-13591
GCVE (VulDB): GCVE-100-374594
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 06/29/2026 06:56Changes: 06/29/2026 06:56 (62)
Complete: 🔍
Submitter: dem0000
Cache ID: 216::103
Submit
Accepted
- Submit #844480: DeepMyst Mysti 0.4.0 Authorization Bypass / Identity Spoofing (by dem0000)
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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