What’s Vulnerable › Vulnerabilities

CVE-2012-1495

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 79.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-01-27 · updated 2026-06-16
• Weakness: CWE-74

Description

install/index.php in WebCalendar before 1.2.5 allows remote attackers to execute arbitrary code via the form_single_user_login parameter.

Affected products

• k5n.us WebCalendar: before 1.2.5 — fixed in 1.2.5

How to fix

Upgrade to a fixed version: k5n.us WebCalendar 1.2.5. Check the vendor advisory for mitigations.

References

• http://sourceforge.net/projects/webcalendar/files/webcalendar%201.2/1.2.5/
• https://packetstormsecurity.com/files/112323/WebCalendar-1.2.4-Pre-Auth-Remote-Code-Injection.html
• https://packetstormsecurity.com/files/112332/WebCalendar-1.2.4-Remote-Code-Execution.html
• https://www.exploit-db.com/exploits/18775
• http://sourceforge.net/projects/webcalendar/files/webcalendar%201.2/1.2.5/
• https://packetstormsecurity.com/files/112323/WebCalendar-1.2.4-Pre-Auth-Remote-Code-Injection.html
• https://packetstormsecurity.com/files/112332/WebCalendar-1.2.4-Remote-Code-Execution.html
• https://www.exploit-db.com/exploits/18775

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