// For flags

CVE-2023-36806

Contao cross site scripting vulnerability via input unit widget

Severity Score

5.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

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.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
Poc
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-06-27 CVE Reserved
  • 2023-07-25 CVE Published
  • 2024-10-23 CVE Updated
  • 2024-10-23 First Exploit
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Contao
Search vendor "Contao"
Contao
Search vendor "Contao" for product "Contao"
>= 4.0.0 < 4.9.42
Search vendor "Contao" for product "Contao" and version " >= 4.0.0 < 4.9.42"
-
Affected
Contao
Search vendor "Contao"
Contao
Search vendor "Contao" for product "Contao"
>= 4.10.0 < 4.13.28
Search vendor "Contao" for product "Contao" and version " >= 4.10.0 < 4.13.28"
-
Affected
Contao
Search vendor "Contao"
Contao
Search vendor "Contao" for product "Contao"
>= 5.0.0 < 5.1.10
Search vendor "Contao" for product "Contao" and version " >= 5.0.0 < 5.1.10"
-
Affected