CVE-2026-11434
FluentCMS Blocks Plugin blocks cross site scripting
- State
- Published
- Severity
- 4.8 Medium
- Published
- Jun 6, 2026
- Updated
- Jun 10, 2026
- Reserved
- Jun 5, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | 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 | VulDB |
| 3.1 | 2.4 Low | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R | VulDB |
| 3.0 | 2.4 Low | CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R | VulDB |
| 2.0 | 3.3 Low | AV:N/AC:L/Au:M/C:N/I:P/A:N/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
FluentCMSn/a |
|
References
- VDB-369014 | FluentCMS Blocks Plugin blocks cross site scriptingvdb-entry
- VDB-369014 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-11434 | CVE Analysis and Reportthird-party-advisory
- Submit #821094 | FluentCMS 0.0.5 Cross Site Scriptingthird-party-advisory
- https://karinagante.github.io/cve-2026-11434/related
- https://karinagante.github.io/cve-2026-11434/#proof-of-concept-pocexploit
- https://hackmd.io/@noka/BkHdIMFAWxrelated
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