PT-2020-20673 · Webnus · Modern Events Calendar Lite

Published 2020-02-28 · Updated 2020-03-02 · CVE-2020-9459

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Webnus Modern Events Calendar Lite plugin versions through 5.1.6

Description The issue allows remote authenticated users with minimal permissions to inject arbitrary JavaScript, HTML, or CSS via Ajax actions, affecting mec save notifications and import settings.

Recommendations For versions through 5.1.6, consider disabling the mec save notifications and import settings Ajax actions until a patch is available. Restrict access to these affected settings to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-9459

Affected Products

Modern Events Calendar Lite

References · 5

• 🔥 https://wordfence.com/blog/2020/02/site-takeover-campaign-exploits-multiple-zero-day-vulnerabilities · Exploit
• 🔥 https://wpvulndb.com/vulnerabilities/10100 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-9459 · Security Note
• https://osv.dev/vulnerability/CVE-2020-9459 · Vendor Advisory
• https://t.me/cvenotify/1298 · Telegram Post