Vulnerability · Published Mar 24, 2026 · Assigned by VulDB
CVE-2026-4623DefaultFuction Jeson-Customer-Relationship-Management-System API Module System.php server-side request forgery
High 7.3
In plain English
A high-severity server-side request forgery in Jeson-Customer-Relationship-Management-System from DefaultFuction. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Official description
A security vulnerability has been detected in DefaultFuction Jeson-Customer-Relationship-Management-System up to 1b4679c4d06b90d31dd521c2b000bfdec5a36e00. This affects an unknown function of the file /api/System.php of the component API Module. The manipulation of the argument url leads to server-side request forgery. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The identifier of the patch is f76e7123fe093b8675f88ec8f71725b0dd186310/98bd4eb07fa19d4f2c5228de6395580013c97476. It is suggested to install a patch to address this issue.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| DefaultFuction | Jeson-Customer-Relationship-Management-System | n/a |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-352482 | DefaultFuction Jeson-Customer-Relationship-Management-System API Module System.php server-side request forgery vdb-entry, technical-description
- VDB-352482 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #775760 | DefaultFuction CRM V1.0.0 Server-Side Request Forgery third-party-advisory
- https://github.com/DefaultFuction/Jeson-Customer-Relationship-Management-System/issues/2 issue-tracking
- https://github.com/DefaultFuction/Jeson-Customer-Relationship-Management-System/issues/2#issuecomment-4023480586 issue-tracking
- https://github.com/DefaultFuction/Jeson-Customer-Relationship-Management-System/issues/2#issue-4045330588 exploit, issue-tracking
- https://github.com/DefaultFuction/Jeson-Customer-Relationship-Management-System/commit/f76e7123fe093b8675f88ec8f71725b0dd186310 patch
- https://github.com/DefaultFuction/Jeson-Customer-Relationship-Management-System/ product