# CVE-2026-48707

## Summary

- **CVE ID:** CVE-2026-48707
- **Severity:** LOW
- **CVSS Score:** 3.1 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N)
- **CWE:** CWE-918
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 8, 2026

## Description

InstantCMS is a free and open source content management system. Versions prior to 2.18.2 have a Server-Side Request Forgery (SSRF) vulnerability in the file upload functionality (`system/core/uploader.php` at lines 509-532). When the "upload from URL" feature follows an HTTP redirect, the redirected target URL bypasses the private IP address blacklist check. This allows authenticated users to scan and access internal network services. Version 2.18.2 contains a fix.

## Affected Products

- instantsoft — icms2 (< 2.18.2)

## References

- [CNA](https://github.com/instantsoft/icms2/security/advisories/GHSA-cm47-mwv3-f534)
- [CNA](https://github.com/instantsoft/icms2/commit/04b8fe0eb75fc5f44eecb15684c7d3660586683d)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 11.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._