Description
The Simple Calendar – Google Calendar Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 3.4.2. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
References (3)
Core 3
Core References
Scores
CVSS v3
6.1
EPSS
0.0046
EPSS Percentile
37.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
simplecalendar/Simple Calendar – Google Calendar Plugin
< 3.4.2
xtendify/simple_calendar
< 3.4.3
Published
Sep 25, 2024
Tracked Since
Feb 18, 2026