CVE-2026-11434: Cross Site Scripting in FluentCMS
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.
AI Analysis
Technical Summary
A cross-site scripting vulnerability exists in FluentCMS 0.0.5 within an unknown function in the /admin/blocks file of the Blocks Plugin. This vulnerability allows remote attackers to inject malicious scripts due to insufficient input sanitization or output encoding. The vendor has not issued any response or fix, and no patch is currently available. The vulnerability has a CVSS 4.8 (medium) score with network attack vector, low attack complexity, and requires high privileges with user interaction.
Potential Impact
Successful exploitation could allow an attacker with high privileges to execute arbitrary scripts in the context of the affected application, potentially leading to session hijacking, defacement, or other client-side attacks. However, the impact is limited by the requirement for high privileges and user interaction. There is no evidence of known exploits in the wild.
Mitigation Recommendations
No official fix or patch is currently available for this vulnerability. Users of FluentCMS 0.0.5 should consider restricting access to the affected component and monitor for any suspicious activity. Since the vendor has not provided remediation guidance, users should follow best practices for mitigating XSS vulnerabilities, such as input validation and output encoding, if possible. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-11434: Cross Site Scripting in FluentCMS
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 v4.0
Score 4.8medium
Affected software
pkg:github/fluentcms/FluentCMSRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
A cross-site scripting vulnerability exists in FluentCMS 0.0.5 within an unknown function in the /admin/blocks file of the Blocks Plugin. This vulnerability allows remote attackers to inject malicious scripts due to insufficient input sanitization or output encoding. The vendor has not issued any response or fix, and no patch is currently available. The vulnerability has a CVSS 4.8 (medium) score with network attack vector, low attack complexity, and requires high privileges with user interaction.
Potential Impact
Successful exploitation could allow an attacker with high privileges to execute arbitrary scripts in the context of the affected application, potentially leading to session hijacking, defacement, or other client-side attacks. However, the impact is limited by the requirement for high privileges and user interaction. There is no evidence of known exploits in the wild.
Mitigation Recommendations
No official fix or patch is currently available for this vulnerability. Users of FluentCMS 0.0.5 should consider restricting access to the affected component and monitor for any suspicious activity. Since the vendor has not provided remediation guidance, users should follow best practices for mitigating XSS vulnerabilities, such as input validation and output encoding, if possible. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-06-05T22:07:20.333Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a242fbee29bf47b5092e41f
Added to database: 06/06/2026, 14:33:34 UTC
Last enriched: 06/14/2026, 09:10:33 UTC
Last updated: 07/24/2026, 08:52:03 UTC
Views: 70
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