WebCalendar 1.0.1 to 1.0.3 generates different error messages depending on whether or not…
Priority LOW 26Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
WebCalendar 1.0.1 to 1.0.3 generates different error messages depending on whether or not a username is valid, which allows remote attackers to enumerate valid usernames.
Why it matters now
EPSS 0.01695 77th percentileScored 2026-11-07
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 · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:webcalendar:webcalendar:1.0.1:*:*:*:*:*:*:* | 1.0.1 | Vulnerable | Webcalendar |
| cpe:2.3:a:webcalendar:webcalendar:1.0.2:*:*:*:*:*:*:* | 1.0.2 | Vulnerable | Webcalendar |
| cpe:2.3:a:webcalendar:webcalendar:1.0.3:*:*:*:*:*:*:* | 1.0.3 | Vulnerable | Webcalendar |
- cpe:2.3:a:webcalendar:webcalendar:1.0.1:*:*:*:*:*:*:* Versions 1.0.1 Vulnerable ·Webcalendar
- cpe:2.3:a:webcalendar:webcalendar:1.0.2:*:*:*:*:*:*:* Versions 1.0.2 Vulnerable ·Webcalendar
- cpe:2.3:a:webcalendar:webcalendar:1.0.3:*:*:*:*:*:*:* Versions 1.0.3 Vulnerable ·Webcalendar
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2006-2247
- 2026-10-03 Alias added: GHSA-437p-pvrc-cr2c
More Webcalendar vulnerabilities
- TI-2001-00469 Vulnerability in WebCalendar 0.9.26 allows remote command execution. CVSS 2.0HIGH 7.5
- TI-2007-01288 includes/functions.php in Craig Knudsen WebCalendar before 1.0.5 does not protect the… CVSS 2.0HIGH 7.5
- TI-2005-03742 Multiple SQL injection vulnerabilities in WebCalendar 1.0.1 allow remote attackers to… CVSS 2.0HIGH 7.5
- TI-2005-02580 PHP remote file inclusion vulnerability in WebCalendar before 1.0.1 allows remote… CVSS 2.0HIGH 7.5
- TI-2005-02197 WebCalendar before 1.0.0 does not properly restrict access to assistant_edit.php, which… CVSS 2.0HIGH 7.5
- TI-2004-01384 init.php in WebCalendar allows remote attackers to execute arbitrary local PHP scripts via the user_inc parameter. CVSS 2.0HIGH 7.5
Sources
- CVE-2006-2247 · CVE Program
- CVE-2006-2247 · NVD
- FIRST EPSS
- GHSA-437p-pvrc-cr2c · GitHub Advisory Database · CC BY 4.0
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