// For flags

CVE-2020-4041

The filename of uploaded files vulnerable to stored XSS in Bolt CMS

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In Bolt CMS before version 3.7.1, the filename of uploaded files was vulnerable to stored XSS. It is not possible to inject javascript code in the file name when creating/uploading the file. But, once created/uploaded, it can be renamed to inject the payload in it. Additionally, the measures to prevent renaming the file to disallowed filename extensions could be circumvented. This is fixed in Bolt 3.7.1.

En Bolt CMS versión anterior a 3.7.1, el nombre de archivo de los archivos cargados eran vulnerables a un ataque de tipo XSS almacenado. No es posible inyectar código javascript en el nombre del archivo al crear y cargar el archivo. Pero, una vez creado y cargado, se puede cambiar el nombre para inyectar la carga útil en él. Además, las medidas para impedir cambiar el nombre del archivo a extensiones de nombre de archivo no permitidas podrían ser omitidas. Esto es corregido en Bolt versión 3.7.1

Bolt CMS versions 3.7.0 and below suffer from cross site request forgery, cross site scripting, and remote shell upload vulnerabilities that when combined can achieve remote code execution in one click.

*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
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
None
Integrity
High
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
  • 2019-12-30 CVE Reserved
  • 2020-06-08 CVE Published
  • 2024-02-24 EPSS Updated
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • ---------- 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
Boltcms
Search vendor "Boltcms"
Bolt
Search vendor "Boltcms" for product "Bolt"
< 3.7.1
Search vendor "Boltcms" for product "Bolt" and version " < 3.7.1"
-
Affected