5.4

CVE-2021-24147

Exploit

Modern Events Calendar Lite <= 5.16.4 - Authenticated Stored Cross-Site Scripting

Unvalidated input and lack of output encoding in the Modern Events Calendar Lite WordPress plugin, versions before 5.16.5, did not sanitise the mic_comment field (Notes on time) when adding/editing an event, allowing users with privilege as low as author to add events with a Cross-Site Scripting payload in them, which will be triggered in the frontend when viewing the event.
Mögliche Gegenmaßnahme
Modern Events Calendar Lite: Update to version 5.16.5, or a newer patched version
Weitere Schwachstelleninformationen
SystemWordPress Plugin
≫
Produkt Modern Events Calendar Lite
Version * - 5.16.4
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Webnus ≫ Modern Events Calendar Lite SwPlatformwordpress Version < 5.16.5
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.27% 0.499
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.4 2.3 2.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
nvd@nist.gov 3.5 6.8 2.9
AV:N/AC:M/Au:S/C:N/I:P/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.