wpForo Forum 2.4.14 Stored XSS via Unsafe JSON Encoding in Inline Script
Published Feb 28, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
wpForo Forum 2.4.14 Stored XSS via Unsafe JSON Encoding in Inline Script
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- wpForo Forum WordPress Plugin ↗
- wpForo Forum Contributors & Developers ↗
- VulnCheck Advisory: wpForo Forum 2.4.14 Stored XSS via Unsafe JSON Encoding in Inline Script ↗
Record history
Published Feb 28, 2026 · Last refreshed Nov 3, 2026