Cross-Site Scripting in keystone
Versions of keystone prior to 4.0.0 are vulnerable to Cross-Site Scripting (XSS). The package fails to properly encode rendered HTML on admin-created blog posts. This allows attackers to execute arbitrary JavaScript in the victim's browser. Exploiting this vulnerability requires having access to an admin account.
Recommendation
Update to version 4.0.0 or later.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | keystone | < 4.0.0-beta7 | 4.0.0-beta7 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2017-15881
- https://github.com/keystonejs/keystone/issues/4437
- https://github.com/keystonejs/keystone/pull/4478
- https://github.com/advisories/GHSA-7cv6-gvx3-m54m
- https://securelayer7.net/download/pdf/KeystoneJS-Pentest-Report-SecureLayer7.pdf
- https://www.npmjs.com/advisories/981
- http://blog.securelayer7.net/keystonejs-open-source-penetration-testing-report
- http://www.securityfocus.com/bid/101541
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- npm
- Package
keystone- Disclosed
- 16.11.2017
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-7cv6-gvx3-m54m - CC BY 4.0
Vulnerability history: keystone
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 11.2017 06.2018
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
- Medium 2
Disclosures per year
- 2017: 4
- 2018: 1
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Cross-Site Scripting in keystone this entry
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