JawherKl node-api-postgres up to 2.5 Profile Picture index.js path.extname unrestricted upload
Summary
A vulnerability was found in JawherKl node-api-postgres up to 2.5. It has been declared as critical. Affected by this vulnerability is the function path.extname of the file index.js of the component Profile Picture Handler. Such manipulation leads to unrestricted upload.
This vulnerability is listed as CVE-2026-4191. The attack may be performed from remote. In addition, an exploit is available.
The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability was found in JawherKl node-api-postgres up to 2.5. It has been rated as critical. Affected by this issue is the function path.extname of the file index.js of the component Profile Picture Handler. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability.
The advisory is available at hackmd.io. This vulnerability is handled as CVE-2026-4191. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.
The exploit is available at hackmd.io. 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.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 6.6
VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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: Unrestricted uploadCWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
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
03/14/2026 Advisory disclosed03/14/2026 VulDB entry created
03/14/2026 VulDB entry last update
Sources
Advisory: hackmd.ioStatus: Not defined
CVE: CVE-2026-4191 (🔒)
GCVE (CVE): GCVE-0-2026-4191
GCVE (VulDB): GCVE-100-351098
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 03/14/2026 23:45Changes: 03/14/2026 23:45 (58)
Complete: 🔍
Submitter: yeee3642
Cache ID: 216::103
Submit
Accepted
- Submit #770002: Jawher Kl node-api-postgres 2.5 Unrestricted File Upload (by yeee3642)
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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