DefaultFuction Jeson-Customer-Relationship-Management-System up to 1b4679c4d06b90d31dd521c2b000bfdec5a36e00 API Module /api/System.php url server-side request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.93

Summaryinfo

A vulnerability was found in DefaultFuction Jeson-Customer-Relationship-Management-System up to 1b4679c4d06b90d31dd521c2b000bfdec5a36e00 and classified as critical. This impacts an unknown function of the file /api/System.php of the component API Module. The manipulation of the argument url results in server-side request forgery. This vulnerability is reported as CVE-2026-4623. The attack can be launched remotely. Moreover, an exploit is present. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in DefaultFuction Jeson-Customer-Relationship-Management-System up to 1b4679c4d06b90d31dd521c2b000bfdec5a36e00. It has been classified as critical. Affected is an unknown code of the file /api/System.php of the component API Module. The manipulation of the argument url with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-4623. 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.

The exploit is shared for download at github.com. It is declared as proof-of-concept. By approaching the search of inurl:api/System.php it is possible to find vulnerable targets with Google Hacking.

Applying the patch f76e7123fe093b8675f88ec8f71725b0dd186310/98bd4eb07fa19d4f2c5228de6395580013c97476 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-14696). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

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Version

License

Website

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: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.3
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: f76e7123fe093b8675f88ec8f71725b0dd186310/98bd4eb07fa19d4f2c5228de6395580013c97476

Timelineinfo

03/23/2026 Advisory disclosed
03/23/2026 +0 days VulDB entry created
03/28/2026 +5 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-4623 (🔒)
GCVE (CVE): GCVE-0-2026-4623
GCVE (VulDB): GCVE-100-352482
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/23/2026 07:13
Updated: 03/28/2026 10:44
Changes: 03/23/2026 07:13 (61), 03/24/2026 05:25 (1), 03/28/2026 10:44 (31)
Complete: 🔍
Submitter: Practice
Cache ID: 216:7AB:103

Submitinfo

Accepted

  • Submit #775760: DefaultFuction CRM V1.0.0 Server-Side Request Forgery (by Practice)

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