WordPress WP FullCalendar plugin <= 1.6 - Sensitive Data Exposure vulnerability
Priority LOW 30CWE-497Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-497.
Summary
Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Marcus (aka @msykes) WP FullCalendar wp-fullcalendar allows Retrieve Embedded Sensitive Data.This issue affects WP FullCalendar: from n/a through <= 1.6.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00328 26th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Marcus (aka @msykes) | WP FullCalendar | up to 1.6 | — | No fix listed | CNA |
- WP FullCalendar VendorMarcus (aka @msykes) Affected up to 1.6 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-24523
- 2026-10-03 Alias added: GHSA-mp3w-p427-6237
More Marcus (aka @msykes) vulnerabilities
- TI-2026-41537 WordPress Events Manager plugin <= 7.3.6 - PHP Object Injection vulnerability CVSS 3.1HIGH 8.8
- TI-2026-17933 WordPress WP FullCalendar plugin <= 1.6 - Broken Access Control vulnerability CVSS 3.1HIGH 7.5
- TI-2025-01068 WordPress Events Manager plugin <= 6.6.4.1 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
- TI-2025-16166 WordPress WP FullCalendar plugin <= 1.5 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
- TI-2026-47311 WordPress Login With Ajax plugin <= 4.5.1 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
- TI-2025-16165 WordPress Meta Tag Manager plugin <= 3.1 - Broken Access Control vulnerability CVSS 3.1MEDIUM 4.3
Sources
- CVE-2026-24523 · CVE Program
- CVE-2026-24523 · NVD
- FIRST EPSS
- GHSA-mp3w-p427-6237 · 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