CVE-2026-14449 - Vulnerability Details - OpenCVE

u5CMS through v12.8.8 is vulnerable to reflected XSS via the ‘thanks’ parameter in multiple form components

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

u5CMS

u5CMS

unaffected

Version	Status	Constraints
`0`	affected	≤ 12.8.8

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/u5cms/u5cms/releases/tag/v12.8.9

History

Thu, 02 Jul 2026 14:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-79
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 02 Jul 2026 12:15:00 +0000

Type	Values Removed	Values Added
Description		u5CMS through v12.8.8 is vulnerable to reflected XSS via the ‘thanks’ parameter in multiple form components
Title		POST-based reflected XSS via the thanks parameter in form components
References		https://github.com/u5cms/u5cms/releases/tag/v12.8.9
Metrics		cvssV4_0 `{'score': 6.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: NCSC.ch

Published: 2026-07-02T11:47:53.387Z

Updated: 2026-07-02T13:14:25.969Z

Reserved: 2026-07-02T07:19:55.068Z

Link: CVE-2026-14449

Vulnrichment

Updated: 2026-07-02T13:14:22.840Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79

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