AUGUST 16, 2026
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Case File

CVE-2026-18856

MEDIUM · CVSS 4.7 EPSS 0.23% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-05 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

The Poesis Rhymix CMS versions up to 2.1.33 are vulnerable to a server-side request forgery due to improper handling of the filename argument in the Data Import Module's admin controller. This vulnerability can be exploited remotely, potentially allowing attackers to manipulate server requests. Organizations using affected versions should prioritize upgrading to version 2.1.34 to mitigate the risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit
GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-18856
Severity
MEDIUM
CVSS
4.7
EPSS
0.23%

Original NVD Description

A vulnerability was determined in Poesis Rhymix CMS up to 2.1.33. This impacts the function procImporterAdminCheckXmlFile of the file modules/importer/importer.admin.controller.php of the component Data Import Module. This manipulation of the argument filename causes server-side request forgery. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.1.34 will fix this issue. It is recommended to upgrade the affected component.