CVE-2025-4855CRITICAL 9.8EPSS p25.4%

CVE-2025-4855CVE-2025-4855

Description

The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion of data due to use of hardcoded default secrets in the sb_encryption() function in all versions up to, and including, 3.8.0. This makes it possible for unauthenticated attackers to bypass authorization and execute arbitrary AJAX actions defined in the sb_ajax_execute() function. An attacker can use this vulnerability to exploit CVE-2025-4828 and various other functions unauthenticated.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.34% probability of exploitation · percentile 25.4% · 2026-06-19T12:03:05Z
Published2025-07-09
Last modified2025-07-14

Underlying weaknesses· 1

CWE-639

References

  1. https://codecanyon.net/item/support-board-help-desk-and-chat/20359943
  2. https://www.wordfence.com/threat-intel/vulnerabilities/id/afd48bc8-d490-4a3e-97fc-70cf008cbf66?source=cve

1

TypeTargetConfidenceTier
WeaknessAuthorization Bypass Through User-Controlled Keycwe-6390%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2025-4828
CVE
CVE-2026-4815
CVE
CVE-2025-4578
CVE
CVE-2025-14124
CVE
CVE-2026-7523
CVE
CVE-2025-4473
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.