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TI-2021-06437 Aliases CVE-2021-24145GHSA-5vmg-gchf-rcpm

Modern Events Calendar Lite < 5.16.5 - Authenticated Arbitrary File Upload leading to RCE

Priority HIGH 74CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.

Summary

Arbitrary file upload in the Modern Events Calendar Lite WordPress plugin, versions before 5.16.5, did not properly check the imported file, allowing PHP ones to be uploaded by administrator by using the 'text/csv' content-type in the request.

Why it matters now

EPSS 0.87201 99th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix Fixed Modern Events Calendar Lite (Unknown): 5.16.5

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownModern Events Calendar Lite5.16.5 to before 5.16.55.16.5Patch availableCNA
  • Modern Events Calendar Lite VendorUnknown Affected 5.16.5 to before 5.16.5 Fixed in 5.16.5 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:webnus:modern_events_calendar_lite:*:*:*:*:*:wordpress:*:*before 5.16.5VulnerableWebnus
  • cpe:2.3:a:webnus:modern_events_calendar_lite:*:*:*:*:*:wordpress:*:* Versions before 5.16.5 Vulnerable ·Webnus

Remediation

  • Fix · CNA Modern Events Calendar Lite (Unknown) Fixed in 5.16.5

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Modern Events Calendar Lite 5.16.5

    3 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2021-06438 Modern Events Calendar Lite < 5.16.5 - Unauthenticated Events ExportPriority MEDIUM 57
    • TI-2021-06439 Modern Events Calendar Lite < 5.16.5 - Authenticated Stored Cross-Site Scripting (XSS)Priority LOW 26
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-24145
  2. 2026-10-03 Alias added: GHSA-5vmg-gchf-rcpm

References

Exploit 3

  • TI-2021-07225 Modern Events Calendar < 6.1.5 - Unauthenticated Blind SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2022-00289 Modern Events Calendar Lite < 6.4.0 - Contributor+ Stored Cross Site Scripting CVSS 3.1MEDIUM 5.4
  • TI-2021-06438 Modern Events Calendar Lite < 5.16.5 - Unauthenticated Events Export CVSS 3.1HIGH 7.5
  • TI-2023-01324 Modern Events Calendar lite < 6.5.2 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
  • TI-2024-05057 Modern Events Calendar <= 7.11.0 - Authenticated (Subscriber+) Arbitrary File Upload CVSS 3.1HIGH 8.8
  • TI-2021-03314 Modern Events Calendar Lite <= 6.3.0 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences