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TI-2021-06441 Aliases CVE-2021-24149GHSA-5xcq-547q-fvjw

Modern Events Calendar Lite < 5.16.6 - Authenticated SQL Injection

Priority MEDIUM 41CWE-89Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-89.

Summary

Unvalidated input in the Modern Events Calendar Lite WordPress plugin, versions before 5.16.6, did not sanitise the mec[post_id] POST parameter in the mec_fes_form AJAX action when logged in as an author+, leading to an authenticated SQL Injection issue.

Why it matters now

EPSS 0.01505 74th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Modern Events Calendar Lite (Unknown): 5.16.6

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownModern Events Calendar Lite5.16.6 to before 5.16.65.16.6Patch availableCNA
  • Modern Events Calendar Lite VendorUnknown Affected 5.16.6 to before 5.16.6 Fixed in 5.16.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:webnus:modern_events_calendar_lite:*:*:*:*:*:wordpress:*:*before 5.16.6VulnerableWebnus
  • cpe:2.3:a:webnus:modern_events_calendar_lite:*:*:*:*:*:wordpress:*:* Versions before 5.16.6 Vulnerable ·Webnus

Remediation

  • Fix · CNA Modern Events Calendar Lite (Unknown) Fixed in 5.16.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-24149
  2. 2026-10-03 Alias added: GHSA-5xcq-547q-fvjw

References

Exploit 1

  • TI-2021-07225 Modern Events Calendar < 6.1.5 - Unauthenticated Blind SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2021-06437 Modern Events Calendar Lite < 5.16.5 - Authenticated Arbitrary File Upload leading to RCE CVSS 3.1HIGH 7.2
  • 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
See all 17 →

Sources

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