CVE-2026-84740CWE-74

CVE-2026-84740

Medium · published October 2, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
12.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00223 · 12.2th percentile
Weakness
CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Published
2026-10-02T11:16Z
References (1)
https://wpscan.com/vulnerability/3381a51e-beaa-4420-a33b-6a68612a2e8a/ · [email protected]
EPSS history
Timeline
  • 03 OCT 03:46Z
    EPSS moved — → 0%
    epss
  • 02 OCT 06:56Z
    The Events Calendar 6.12.0 - 6.17.5 - Unauthenticated Arbitrary Shortcode Execution via 'view_data' Parameter
    cvelistv5