CVE-2021-32806 URL Redirection to Untrusted Site ('Open Redirect') in Products.isurlinportal

2021-08-0218:25:11

CWE-601

GitHub_M

www.cve.org

cve-2021-32806

plone

open redirect

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS

0.001

Percentile

34.7%

JSON

Products.isurlinportal is a replacement for isURLInPortal method in Plone. Versions of Products.isurlinportal prior to 1.2.0 have an Open Redirect vulnerability. Various parts of Plone use the ‘is url in portal’ check for security, mostly to see if it is safe to redirect to a url. A url like https://example.org is not in the portal. The url https:example.org without slashes is considered to be in the portal. When redirecting, some browsers go to https://example.org, others give an error. Attackers may use this to redirect victims to their site, especially as part of a phishing attack. The problem has been patched in Products.isurlinportal 1.2.0.

CNA Affected

[
  {
    "product": "Products.isurlinportal",
    "vendor": "plone",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.2.0"
      }
    ]
  }
]