CVE-2026-11434

LOW EPSS 19.2%

Published Jun 6, 20263w ago · Modified Jun 17, 20261w ago

1.9 CVSS 4.0

Low

Published Jun 6, 2026 3w ago

Last Modified Jun 17, 2026 1w ago

Description

A weakness has been identified in FluentCMS 0.0.5. The impacted element is an unknown function of the file /admin/blocks of the component Blocks Plugin. This manipulation causes cross site scripting. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Details

Base Score

1.9

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required High

User Interaction P

Scope X

Threat Intelligence

EPSS Exploit Probability

19.2% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 2

CWE-79 Cross-site Scripting Injection

CWE-94 Improper Control of Generation of Code (Code Injection) Injection

References 7

hackmd.io https://hackmd.io/@noka/BkHdIMFAWx
karinagante.github.io https://karinagante.github.io/cve-2026-11434/
karinagante.github.io https://karinagante.github.io/cve-2026-11434/#proof-of-concept-poc
vuldb.com https://vuldb.com/cve/CVE-2026-11434
vuldb.com https://vuldb.com/submit/821094
vuldb.com https://vuldb.com/vuln/369014
vuldb.com https://vuldb.com/vuln/369014/cti

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.