CVE-2026-84740 — MEDIUM (6.5)

Vulnerability Description

The Events Calendar WordPress plugin before 6.17.5.1 does not validate or sanitise data submitted to an unauthenticated AJAX action before merging it into its rendering context, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-74

References

https://wpscan.com/vulnerability/3381a51e-beaa-4420-a33b-6a68612a2e8a/

FAQ

What is CVE-2026-84740?

CVE-2026-84740 is a vulnerability with a CVSS score of 6.5 (MEDIUM). The Events Calendar WordPress plugin before 6.17.5.1 does not validate or sanitise data submitted to an unauthenticated AJAX action before merging it into its rendering context, allowing unauthenticat...

How severe is CVE-2026-84740?

CVE-2026-84740 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-84740?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.