Cross-Site Scripting in keystone (GHSA-7cv6-gvx3-m54m)
Published: 2017-11-16T01:47:02Z
Aliases: CVE-2017-15881
Severity: MODERATE · CWE: CWE-79

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 packages:
package: ecosystem: npm
name: keystone
ranges: type: ECOSYSTEM
events: introduced: 0
fixed: 4.0.0-beta7
database_specific: last_known_affected_version_range: <= 4.0.0-beta6