CVE-2026-119714: medium-severity vulnerability in joedolson My Calendar - Accessible Event Manager
My Calendar 3.8.8 before 3.8.11 Unauthenticated Shortcode Injection via mcs Parameter
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9epss 0.3%
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
joedolson · My Calendar - Accessible Event ManagerReferences
https://github.com/joedolson/my-calendarhttps://github.com/joedolson/my-calendar/blob/v3.8.10/src/my-calendar-search.php#L170https://github.com/joedolson/my-calendar/commit/de875c25d9651abb041b2dfe32f60a4320c66496https://github.com/joedolson/my-calendar/releases/tag/v3.8.11https://www.vulncheck.com/advisories/my-calendar-3.8.8-before-3.8.11-unauthenticated-shortcode-injection-via-mcs-parameter