What’s Vulnerable › Vulnerabilities

CVE-2021-39274

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-19 · updated 2026-06-17
• Weakness: CWE-276

Description

In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file. This results in arbitrary code execution with root privileges.

Affected products

• Xerosecurity Sn1Per: 9.0

References

• https://github.com/1N3/Sn1per/issues/357
• https://github.com/1N3/Sn1per/releases
• https://github.com/nikip72/CVE-2021-39273-CVE-2021-39274
• https://github.com/1N3/Sn1per/issues/357
• https://github.com/1N3/Sn1per/releases
• https://github.com/nikip72/CVE-2021-39273-CVE-2021-39274

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