CVE-2026-119714
mediumMy Calendar WordPress plugin 3.8.8 before 3.8.11 contains a shortcode injection vulnerability that allows unauthenticated attackers to execute registered short…
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/joedolson/my-calendar disclosure@vulncheck.com
- https://github.com/joedolson/my-calendar/blob/v3.8.10/src/my-calendar-search.php#L170 disclosure@vulncheck.com
- https://github.com/joedolson/my-calendar/commit/de875c25d9651abb041b2dfe32f60a4320c66496 disclosure@vulncheck.com
- https://github.com/joedolson/my-calendar/releases/tag/v3.8.11 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/my-calendar-3.8.8-before-3.8.11-unauthenticated-short... disclosure@vulncheck.com