install/index.php in WebCalendar before 1.2.5 allows remote attackers to execute…
Priority HIGH 82CWE-74Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
install/index.php in WebCalendar before 1.2.5 allows remote attackers to execute arbitrary code via the form_single_user_login parameter.
Why it matters now
EPSS 0.79764 99th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:webcalendar_project:webcalendar:*:*:*:*:*:*:*:* | before 1.2.5 | Vulnerable | Webcalendar Project |
- cpe:2.3:a:webcalendar_project:webcalendar:*:*:*:*:*:*:*:* Versions before 1.2.5 Vulnerable ·Webcalendar Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-1495
- 2026-10-03 Alias added: GHSA-5whg-989c-xx4x
References
Exploit 3
More Webcalendar Project Webcalendar vulnerabilities
- TI-2024-15086 WebCalendar v1.3.0 was discovered to contain a reflected cross-site scripting (XSS)… CVSS 3.1MEDIUM 6.1
- TI-2023-00274 Cross-site Scripting (XSS) - Stored in craigk5n/webcalendar CVSS 3.1MEDIUM 5.4
- TI-2012-01309 Local file inclusion in WebCalendar before 1.2.5. CVSS 3.1HIGH 8.8
- TI-2012-04558 install/index.php in Craig Knudsen WebCalendar before 1.2.5 allows remote attackers to… CVSS 2.0HIGH 7.5
- TI-2017-07941 Cross-site scripting in k5n.us WebCalendar CVSS 3.0MEDIUM 6.1
- TI-2017-07942 Path traversal in k5n.us WebCalendar CVSS 3.0MEDIUM 4.9
Sources
- CVE-2012-1495 · CVE Program
- CVE-2012-1495 · NVD
- FIRST EPSS
- GHSA-5whg-989c-xx4x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences