CVE-2024-28191 Contao may have unencoded insert tags in the frontend

2024-04-0913:54:22

CWE-74

GitHub_M

github.com

contao

cve-2024-28191

insert tags

vulnerability

frontend

forms

user data

CVSS3

3.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.9

Confidence

High

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

Contao is an open source content management system. Starting in version 4.0.0 and prior to version 4.13.40 and 5.3.4, it is possible to inject insert tags in frontend forms if the output is structured in a very specific way. Contao versions 4.13.40 and 5.3.4 have a patch for this issue. As a workaround, do not output user data from frontend forms next to each other, always separate them by at least one character.

CNA Affected

[
  {
    "vendor": "contao",
    "product": "contao",
    "versions": [
      {
        "status": "affected",
        "version": ">= 4.0.0, < 4.13.40"
      },
      {
        "status": "affected",
        "version": ">= 5.0.0, < 5.3.4"
      }
    ]
  }
]