// For flags

CVE-2020-12707

LeptonCMS 4.5.0 - Persistent Cross-Site Scripting

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An XSS vulnerability exists in modules/wysiwyg/save.php of LeptonCMS 4.5.0. This can be exploited because the only security measure used against XSS is the stripping of SCRIPT elements. A malicious actor can use HTML event handlers to run JavaScript instead of using SCRIPT elements.

Se presenta una vulnerabilidad de tipo XSS en el archivo modules/wysiwyg/save.php de LeptonCMS versión 4.5.0. Esto puede ser explotado porque la única medida de seguridad usada contra un ataque XSS es la eliminación de elementos SCRIPT. Un actor malicioso puede utilizar manejadores de eventos HTML para ejecutar JavaScript en lugar de usar elementos SCRIPT.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-03-25 First Exploit
  • 2020-05-07 CVE Reserved
  • 2020-05-07 CVE Published
  • 2024-08-04 CVE Updated
  • 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
Lepton-cms
Search vendor "Lepton-cms"
 Lepton Cms
Search vendor "Lepton-cms" for product "Lepton Cms"
 4.5.0
Search vendor "Lepton-cms" for product "Lepton Cms" and version "4.5.0"
-
Affected