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CVE-2026-28560

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CVE-2026-28560

Published: Feb 28, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

5.5

MEDIUM

Description

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.

VendorProductVersions

gVectors Team

wpForo Forum

affected
2.4 - < 2.4.16
unaffected
2.4.16

Weaknesses (CWE)

CWE-79

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

References

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