RCE in Joedolson My Calendar - Accessible Event Manager
CVE-2026-119714
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/joedolson/my-calendar/commit/de875c25d9651abb041b2dfe32f60a4320c66496 (patch)
- github.com/joedolson/my-calendar (product)
- github.com/joedolson/my-calendar/releases/tag/v3.8.11 (release-notes)
- github.com/joedolson/my-calendar/blob/v3.8.10/src/my-calendar-search.php (technical-description)
- www.vulncheck.com/advisories/my-calendar-3.8.8-before-3.8.11-unauthenticated-sh… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-119714?
- CVE-2026-119714 is a medium-severity vulnerability in Joedolson My Calendar - Accessible Event Manager, classified under Code Injection. CVSS score: 6.5/10. Published 2026-10-30.
- How severe is CVE-2026-119714?
- Medium severity. CVSS v3 base score is 6.5 out of 10.