What’s Vulnerable › Vulnerabilities

CVE-2021-39609

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-23 · updated 2026-06-17
• Weakness: CWE-79

Description

Cross Site Scripting (XSS) vulnerability exiss in FlatCore-CMS 2.0.7 via the upload image function.

Affected products

• flatcore/flatcore-cms: 2.0.7

References

• https://github.com/flatCore/flatCore-CMS/issues/53
• https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-39609
• https://www.nu11secur1ty.com/2021/08/cve-2021-39609.html
• https://github.com/flatCore/flatCore-CMS/issues/53
• https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-39609
• https://www.nu11secur1ty.com/2021/08/cve-2021-39609.html

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