Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXczdzgtMzdqdi0yYzU4

Cross-Site Scripting in mustache

Versions of mustache prior to 2.2.1 are affected by a cross-site scripting vulnerability when attributes in mustache templates are not quoted.

Example

Template:
<a href={{foo}}/>

Input:
{ 'foo' : 'test.com onload=alert(1)'}

Rendered result:
<a href=test.com onload=alert(1)/>

Recommendation

Update to version 2.2.1 or later.
Alternatively, ensure that all attributes in hmustache templates are encapsulated with quotes.

Permalink: https://github.com/advisories/GHSA-w3w8-37jv-2c58
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXczdzgtMzdqdi0yYzU4
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 6 years ago
Updated: over 1 year ago

CVSS Score: 6.1
CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Identifiers: GHSA-w3w8-37jv-2c58, CVE-2015-8862
References:

• https://nvd.nist.gov/vuln/detail/CVE-2015-8862
• https://github.com/janl/mustache.js/commit/378bcca8a5cfe4058f294a3dbb78e8755e8e0da5
• https://github.com/advisories/GHSA-w3w8-37jv-2c58
• https://www.npmjs.com/advisories/62
• https://www.tenable.com/security/tns-2016-18
• http://www.openwall.com/lists/oss-security/2016/04/20/11
• http://www.securityfocus.com/bid/96436

Repository: https://github.com/janl/mustache.js
Blast Radius: 32.6

Affected Packages