Flat Calendar 1.1 does not properly restrict access to administrative functions, which…
Priority LOW 33CWE-264Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
Flat Calendar 1.1 does not properly restrict access to administrative functions, which allows remote attackers to (1) add new events via calAdd.php, as reachable from admin/add.php, or (2) delete events via admin/deleteEvent.php. NOTE: this is only a vulnerability when the administrator does not follow recommendations in the product's security documentation.
Why it matters now
EPSS 0.02198 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged 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:circulargenius:flat_calendar:1.1:*:*:*:*:*:*:* | 1.1 | Vulnerable | Circulargenius |
- cpe:2.3:a:circulargenius:flat_calendar:1.1:*:*:*:*:*:*:* Versions 1.1 Vulnerable ·Circulargenius
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-6736
- 2026-10-03 Alias added: GHSA-5xr2-3h2h-5cjv
References
Exploit 1
Sources
- CVE-2008-6736 · CVE Program
- CVE-2008-6736 · NVD
- FIRST EPSS
- GHSA-5xr2-3h2h-5cjv · 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