What’s Vulnerable › Vulnerabilities

CVE-2026-14449: POST-based reflected XSS via the thanks parameter in form components

• Severity: medium (CVSS 6.4 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-02 · updated 2026-07-02
• Weakness: CWE-79

Description

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

Affected products

• u5CMS: through 12.8.8

References

• https://github.com/u5cms/u5cms/releases/tag/v12.8.9

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