CVE-2026-14827

Calendar < 1.3.18 - Contributor+ Stored XSS via event_link Parameter

Medium · published July 27, 2026

CVSS v3.1
6.8
EPSS
0%
Percentile
36.3
In the wild
Unconfirmed
What it is

The Calendar WordPress plugin before 1.3.18 does not properly escape a user-supplied event field before outputting it inside an HTML attribute on a public-facing page, allowing users with the Contributor role to inject arbitrary JavaScript that executes in the browser of anyone viewing the calendar.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00431 · 36.3th percentile
Published
2026-07-27T06:00Z
EPSS history
Timeline
  • 27 JUL 06:00Z
    Calendar < 1.3.18 - Contributor+ Stored XSS via event_link Parameter
    cvelistv5