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CVE-2026-119714

MEDIUM 6.9 CVSS 4.0
Published
October 30, 2026
Last modified
October 30, 2026
NVD status
Deferred
Reported by
disclosure@vulncheck.com
Weakness
CWE-94
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Description

My Calendar WordPress plugin 3.8.8 before 3.8.11 contains a shortcode injection vulnerability that allows unauthenticated attackers to execute registered shortcodes via the mcs search parameter. The mcs value reaches mc_search_results() in src/my-calendar-search.php without bracket encoding before do_shortcode runs, so a GET request triggers shortcodes on any page or post, enabling content injection and spoofing.

Affected WordPress components

  • My Calendar – Accessible Event Manager Plugin · my-calendar
    Confirmed match Active
    From 3.8.8 (including) to 3.8.11 (excluding)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • joedolson My Calendar - Accessible Event Manager — From 3.8.8 (including) to 3.8.11 (excluding)

References

  • github.com https://github.com/joedolson/my-calendar
  • github.com https://github.com/joedolson/my-calendar/blob/v3.8.10/src/my-calendar-search.php#L170
  • github.com https://github.com/joedolson/my-calendar/commit/de875c25d9651abb041b2dfe32f60a4320c66496
  • github.com https://github.com/joedolson/my-calendar/releases/tag/v3.8.11
  • www.vulncheck.com https://www.vulncheck.com/advisories/my-calendar-3.8.8-before-3.8.11-unauthenticated-shortcode-injection-via-mcs-parameter
  • nvd.nist.gov Official NVD record