CVE-2023-36806 Contao cross site scripting vulnerability via input unit widget

2023-07-2518:47:34

CWE-79

GitHub_M

www.cve.org

contao

cross site scripting

input unit widget

security patch

untrusted backend users

element preview

website

workaround

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

0.001 Low

EPSS

Percentile

26.5%

JSON

Contao is an open source content management system. Starting in version 4.0.0 and prior to versions 4.9.42, 4.13.28, and 5.1.10, it is possible for untrusted backend users to inject malicious code into headline fields in the back end, which will be executed both in the element preview (back end) and on the website (front end). Installations are only affected if there are untrusted back end users who have the rights to modify headline fields, or other fields using the input unit widget. Contao 4.9.42, 4.13.28, and 5.1.10 have a patch for this issue. As a workaround, disable the login for all untrusted back end users.

CNA Affected

[
  {
    "vendor": "contao",
    "product": "contao",
    "versions": [
      {
        "version": ">= 4.0.0, < 4.9.42",
        "status": "affected"
      },
      {
        "version": ">= 4.10.0, < 4.13.28",
        "status": "affected"
      },
      {
        "version": ">= 5.0.0, < 5.1.10",
        "status": "affected"
      }
    ]
  }
]