What’s Vulnerable › Vulnerabilities

CVE-2021-3317

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 41.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-01-26 · updated 2026-06-17
• Weakness: CWE-78

Description

KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on the original value of the source parameter.

Affected products

• Klogserver Klog Server: through 2.4.1

References

• http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html
• https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection
• http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html
• https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection

Get alerted when CVE-2021-3317 or the next vulnerability affects your stack