htmlfile in lib/transport/htmlfile.js in SockJS before 0.3.0 is vulnerable to Reflected…
Priority LOW 31CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
htmlfile in lib/transport/htmlfile.js in SockJS before 0.3.0 is vulnerable to Reflected XSS via the /htmlfile c (aka callback) parameter.
Why it matters now
EPSS 0.01886 79th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed sockjs (npm): 0.3.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | sockjs (npm) | before 0.3.0 | 0.3.0 | Patch available | GHSA-hh8v-jmh3-9437 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- sockjs (npm) Vendor— Affected before 0.3.0 Fixed in 0.3.0 Patch available GHSA-hh8v-jmh3-9437
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sockjs_project:sockjs:*:*:*:*:*:node.js:*:* | before 0.3.0 | Vulnerable | Sockjs Project |
- cpe:2.3:a:sockjs_project:sockjs:*:*:*:*:*:node.js:*:* Versions before 0.3.0 Vulnerable ·Sockjs Project
Remediation
- Fix · GHSA-hh8v-jmh3-9437 sockjs (npm) Fixed in 0.3.0 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 3 products
- Distributed Tracing Jaeger 1
- OpenShift Service Mesh 1
- Red Hat OpenShift Application Runtimes
Timeline
- 2026-10-02 Threatist record created from CVE-2020-8823
- 2026-10-03 Alias added: GHSA-hh8v-jmh3-9437
References
More Sockjs Project Sockjs vulnerabilities
- TI-2020-06213 Denial of service (DoS) in sockjs CVSS 3.1MEDIUM 5.3
Sources
- CVE-2020-8823 · CVE Program
- CVE-2020-8823 · NVD
- FIRST EPSS
- GHSA-hh8v-jmh3-9437 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-8823 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences