CVE-2023-6360
CriticalExploitedPublic exploitThe 'My Calendar' WordPress Plugin, version < 3.4.22 is affected by an unauthenticated SQL injection vulnerability in the 'from' and 'to' parameters in the '/my-calendar/v1/events' rest route.
Published Nov 30, 2023 · Updated Nov 21, 2024 · Also known as 496b1c3a-7fbb-4088-9936-6b023718946d
Key Facts
Patch immediately- CVE-2023-6360 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting My Calendar (Joedolson).
- It is exploited in the wild, listed in Industry KEV feed since Dec 19, 2025. Public exploit code is available.
- EPSS estimates a 63% probability of exploitation in the next 30 days.
- Fixed versions are available, including My Calendar 3.4.22.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
63%
Higher than 99.1% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2023-6360 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
The 'My Calendar' WordPress Plugin, version < 3.4.22 is affected by an unauthenticated SQL injection vulnerability in the 'from' and 'to' parameters in the '/my-calendar/v1/events' rest route.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Dec 19, 2025 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| My CalendarJoedolson | See advisory | 3.4.22 |
Patched Releases
My Calendar
3.4.22
Timeline
Publicly disclosed
Nov 30, 2023
Last updated
Nov 21, 2024
Added to Industry KEV feed
Dec 19, 2025
Weakness Type
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/496b1c3a-7fbb-4088-9936-6b023718946d?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/496b1c3a-7fbb-4088-9936-6b023718946d?source=api-scan
- exploitVulnCheck exploitation report
- exploithttps://www.tenable.com/security/research/tra-2023-40
FAQ
Common Questions.
The 'My Calendar' WordPress Plugin, version < 3.4.22 is affected by an unauthenticated SQL injection vulnerability in the 'from' and 'to' parameters in the '/my-calendar/v1/events' rest route.
Affected: My Calendar (Joedolson). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Dec 19, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including My Calendar 3.4.22.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2023-6360 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo