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TI-2024-07874 Aliases CVE-2024-8493GHSA-xc5x-xvcr-5h87

The Events Calendar < 6.6.4 - Admin+ Stored XSS

Priority MEDIUM 55CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

The Events Calendar WordPress plugin before 6.6.4 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00362 30th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed The Events Calendar (Unknown): 6.6.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownThe Events Calendarbefore 6.6.46.6.4Patch availableCNA
  • The Events Calendar VendorUnknown Affected before 6.6.4 Fixed in 6.6.4 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:stellarwp:the_events_calendar:*:*:*:*:*:wordpress:*:*before 6.6.4Vulnerablestellarwp
  • cpe:2.3:a:stellarwp:the_events_calendar:*:*:*:*:*:wordpress:*:* Versions before 6.6.4 Vulnerable ·stellarwp

Remediation

  • Fix · CNA The Events Calendar (Unknown) Fixed in 6.6.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-8493
  2. 2026-10-03 Alias added: GHSA-xc5x-xvcr-5h87

References

Exploit 1

  • TI-2024-07671 The Events Calendar <= 6.6.4 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2024-03888 The Events Calendar < 6.4.0.1 - Reflected XSS CVSS 3.1CRITICAL 9.1
  • TI-2024-04952 The Events Calendar < 6.8.2.1 - Unauthenticated Password Protected Event Disclosure CVSS 3.1MEDIUM 5.3
  • TI-2024-06430 The Events Calendar <= 6.6.3 - Unauthenticated Stored Cross-Site Scripting CVSS 3.1HIGH 7.2
  • TI-2023-05697 The Events Calendar < 6.2.8.1 - Unauthenticated Arbitrary Password Protected Post Read CVSS 3.1HIGH 7.5
  • TI-2019-11280 The the-events-calendar plugin before 4.8.2 for WordPress has XSS via the tribe_paged URL parameter. CVSS 3.0MEDIUM 6.1
See all 8 →

Sources

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