Is CVE-2026-28558 actively exploited?

CVE-2026-28558 has no public evidence of in-the-wild exploitation as of 2026-03-04.

What is the CVSS score for CVE-2026-28558?

CVE-2026-28558 has a CVSS score of 5.1 (MEDIUM severity). Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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-2026-28558?

Patch guidance is available from gvectors security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-28558.

Which products are affected by CVE-2026-28558?

1 product: gvectors wpforo forum.

CVE-2026-28558 - remediation guidance & executive summary

Description

wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows authenticated subscribers to upload SVG files as profile avatars through the avatar upload functionality. Attackers upload a crafted SVG containing CSS injection or JavaScript event handlers that execute in the browsers of any user who views the attacker's profile page.

CVSS Metrics

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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: passive
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-79 · Cross-site Scripting (XSS)

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-2026-28558

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary