CVE-2026-28560

wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows script injection via forum URL data output into an inline script block using json_encode without the JSON_HEX_TAG flag. Attackers set a forum slug containing a closing script tag or unescaped single quote to break out of the JavaScript string context and execute arbitrary script in all visitors' browsers.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://wordpress.org/plugins/wpforo/	Product
https://wordpress.org/plugins/wpforo/#developers	Release Notes
https://www.vulncheck.com/advisories/wpforo-forum-stored-xss-via-unsafe-json-encoding-in-inline-script	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gvectors:wpforo_forum:*:*:*:*:*:wordpress:*:*

History

No history.

Information

Published : 2026-02-28 22:16

Updated : 2026-03-04 02:47

NVD link : CVE-2026-28560

Mitre link : CVE-2026-28560

CVE.ORG link : CVE-2026-28560

JSON object : View

Products Affected

gvectors

wpforo_forum

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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