Modern Events Calendar <= 7.11.0 - Authenticated (Subscriber+) Arbitrary File Upload

Summary

CVECVE-2024-5441
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-07-09 06:15:02 UTC
Updated2026-04-08 17:19:03 UTC
DescriptionThe Modern Events Calendar plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the set_featured_image function in all versions up to, and including, 7.11.0. This makes it possible for authenticated attackers, with subscriber access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The plugin allows administrators (via its settings) to extend the ability to submit events to unauthenticated users, which would allow unauthenticated attackers to exploit this vulnerability.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-434 | CWE-434 CWE-434 Unrestricted Upload of File with Dangerous Type


VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Webnus Modern Events Calendar All All All All
Application Webnus Modern Events Calendar Lite All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Webnus Modern Events Calendar affected 7.11.0 semver Not specified
CNA Webnus Modern Events Calendar Lite affected 7.11.0 semver Not specified
ADP Webnus Modern Events Calendar Lite affected 7.11.0 semver Not specified
ADP Webnus Modern Events Calendar affected 7.11.0 semver Not specified

References

ReferenceSourceLinkTags
www.wordfence.com/threat-intel/vulnerabilities/id/0c007090-9d9b-4ee7-8f77-91abd... af854a3a-2127-422b-91ae-364da2661108 www.wordfence.com Third Party Advisory
webnus.net/modern-events-calendar af854a3a-2127-422b-91ae-364da2661108 webnus.net Product
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Friderika Baranyai (en)

Additional Advisory Data

SourceTimeEvent
CNA2024-07-08T00:00:00.000ZDisclosed
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