CVE-2026-28557

HIGH EPSS 19.1%
Published Feb 28, 20264mo ago · Modified Mar 4, 20263mo ago
7.1 CVSS 4.0
High
Find Similar
Published Feb 28, 2026 4mo ago
Last Modified Mar 4, 2026 3mo ago

Description

wpForo Forum 2.4.14 contains a missing capability check vulnerability that allows authenticated users to trigger bulk wpForo usergroup reassignment via the wpforo_synch_roles AJAX handler. Attackers access the usergroups admin page, accessible to any authenticated user, to obtain a nonce, then remap all wpForo usergroups to arbitrary WordPress roles.

CVSS Details

Base Score
7.1
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
19.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

Affected Products 1

VendorProductVersionRange
gvectorswpforo_forum*≥2.4.0  –  <2.4.16

References 3

  • wordpress.org https://wordpress.org/plugins/wpforo/
    Product
  • wordpress.org https://wordpress.org/plugins/wpforo/#developers
    Release Notes
  • vulncheck.com https://www.vulncheck.com/advisories/wpforo-forum-privilege-escalation-via-role-synchronization-handler
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.