A cross-site scripting (XSS) vulnerability exists in…
Priority LOW 33CWE-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 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
A cross-site scripting (XSS) vulnerability exists in fields/types/markdown/MarkdownType.js in KeystoneJS before 4.0.0-beta.7 via the Contact Us feature.
Why it matters now
EPSS 0.03415 88th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix Fixed keystone (npm): 4.0.0
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 |
| — | keystone (npm) | before 4.0.0 | 4.0.0 | Patch available | GHSA-7qcx-jmrc-h2rr |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- keystone (npm) Vendor— Affected before 4.0.0 Fixed in 4.0.0 Patch available GHSA-7qcx-jmrc-h2rr
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:keystonejs:keystone:*:beta7:*:*:*:*:*:* | before 4.0.0 | Vulnerable | keystonejs |
- cpe:2.3:a:keystonejs:keystone:*:beta7:*:*:*:*:*:* Versions before 4.0.0 Vulnerable ·keystonejs
Remediation
- Fix · GHSA-7qcx-jmrc-h2rr keystone (npm) Fixed in 4.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2017-15878
- 2026-10-03 Alias added: GHSA-7qcx-jmrc-h2rr
References
Exploit 2
Advisory 3
More keystonejs Keystone vulnerabilities
- TI-2022-18756 NODE_ENV in Keystone defaults to development with esbuild CVSS 3.1CRITICAL 9.8
- TI-2022-18698 @keystone-6/core vulnerable to field-level access-control bypass for multiselect field CVSS 3.1CRITICAL 9.8
- TI-2017-11626 CSV Injection (aka Excel Macro Injection or Formula Injection) exists in… CVSS 3.0HIGH 8.8
- TI-2022-11852 An arbitrary file upload vulnerability in the file upload module of Keystone v4.2.1… CVSS 3.1CRITICAL 9.8
- TI-2017-12181 KeystoneJS before 4.0.0-beta.7 allows application-wide CSRF bypass by removing the CSRF… CVSS 3.0HIGH 8.8
- TI-2015-07619 Credentials management flaw in HackerOne keystone node module CVSS 3.0HIGH 7.5
Sources
- CVE-2017-15878 · CVE Program
- CVE-2017-15878 · NVD
- FIRST EPSS
- GHSA-7qcx-jmrc-h2rr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences