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Fencer Vulns
high 7.5

CVE-2021-24146 in the critical feed json

Modern Events Calendar Lite < 5.16.5 - Unauthenticated Events Export

published 2021-03-18 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11060

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
31.0%
EPSS 31.0% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB, plus a Nuclei check

Summary

Lack of authorisation checks in the Modern Events Calendar Lite WordPress plugin, versions before 5.16.5, did not properly restrict access to the export files, allowing unauthenticated users to exports all events data in CSV or XML format for example.

Patch / fix

  • webnus modern_events_calendar_lite 5.16.5

Timeline

  1. Published
  2. First public exploit (EDB-50084)

Exploit prediction

31.04% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-50084 Wordpress Plugin Modern Events Calendar 5.16.2 - Event export (Unauthenticated) webapps, 2021-07-02
  • Nuclei template WordPress Modern Events Calendar Lite <5.16.5 - Sensitive Information Disclosure nuclei detection template
  • wpscan.com https://wpscan.com/vulnerability/c7b1ebd6-3050-4725-9c87-0ea525f8fecc referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/163345/WordPress-Modern-Events-Calendar-5.16.2-Information-Disclosure.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

  • Unknown Modern Events Calendar Lite

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.