XSS in Room34 Ics Calendar
CVE-2026-9838
The ICS Calendar plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'htmltagtitle' parameter in all versions up to, and including, 12.0.9 due to insufficient input sanitization and output escaping. This makes it p…
Vulnerability class: XSS (Cross-Site Scripting)
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Room34 Ics Calendar — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-9838?
- CVE-2026-9838 is a medium-severity vulnerability in Room34 Ics Calendar, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-07-10.
- How severe is CVE-2026-9838?
- Medium severity. CVSS v3 base score is 6.1 out of 10.