CVE-2026-28560
wpForo Forum 2.4.14 Stored XSS via Unsafe JSON Encoding in Inline Script
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | gvectors team |
| Product | wpforo forum |
| Published | Feb 28, 2026 |
| Last Updated | Mar 6, 2026 |
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CVSS v3 Breakdown
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
Affected Versions
gVectors Team / wpForo Forum
2.4 < 2.4.16
References
Credits
Scott Moore - VulnCheck