Is CVE-2026-28555 actively exploited?

CVE-2026-28555 has no public evidence of in-the-wild exploitation as of 2026-03-04.

What is the CVSS score for CVE-2026-28555?

CVE-2026-28555 has a CVSS score of 5.3 (MEDIUM severity). Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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.

How do I patch CVE-2026-28555?

Patch guidance is available from gvectors security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-28555.

Which products are affected by CVE-2026-28555?

1 product: gvectors wpforo forum.

CVE-2026-28555 - remediation guidance & executive summary

Description

wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to close or reopen any forum topic via the wpforo_close_ajax handler. Attackers submit a valid nonce with an arbitrary topic ID to bypass the moderator permission requirement and disrupt forum discussions.

CVSS Metrics

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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
Complexity: low
Privileges: low
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-862 · Missing Authorization

Metadata

Primary Vendor: GVECTORS
Published: 2/28/2026
Last Modified: 3/4/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-28555

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary