Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/joedolson/my-calendar
- https://github.com/joedolson/my-calendar/blob/v3.8.10/src/my-calendar-search.php
- https://github.com/joedolson/my-calendar/commit/de875c25d9651abb041b2dfe32f60a43
- https://github.com/joedolson/my-calendar/releases/tag/v3.8.11
- https://www.vulncheck.com/advisories/my-calendar-3.8.8-before-3.8.11-unauthentic
FAQ
What is CVE-2026-119714?
CVE-2026-119714 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 m...
How severe is CVE-2026-119714?
CVE-2026-119714 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-119714?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.