Vulnerability Intelligence Report
REDAXO before 5.21.0 Reflected XSS via Metainfo API type Parameter
CVE-2026-117537
REDAXO before 5.21.0 contains a reflected cross-site scripting vulnerability that allows authenticated attackers to inject scripts via the type parameter of the metainfo_default_fields_create API. Attackers can craft a link with a valid CSRF token and HTML payload that rex_view::message() renders unescaped, executing scripts in a victim's backend session.
Cross-Site Scripting (XSS)
No Active Exploit Signals
CVSS Base Score
2.1
LOW
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-79 ↗Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| redaxo | core | 0 < 5.21.0 (affected), 5.21.0 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Vulnerability Class
Cross-Site Scripting (XSS)
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | VulnCheck · Bug Bounty Provider · USA |
| Reserved | 2026-10-27T10:33:39 |
| Published | 2026-10-27T10:59:32 |
| Patch Date | 2026-04-09 |
| Last Updated | 2026-10-27T10:59:32 |
Community Chatter & Buzz