// For flags

CVE-2020-13671

Drupal core Un-restricted Upload of File

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

Yes
*KEV

Decision

-
*SSVC
Descriptions

Drupal core does not properly sanitize certain filenames on uploaded files, which can lead to files being interpreted as the incorrect extension and served as the wrong MIME type or executed as PHP for certain hosting configurations. This issue affects: Drupal Drupal Core 9.0 versions prior to 9.0.8, 8.9 versions prior to 8.9.9, 8.8 versions prior to 8.8.11, and 7 versions prior to 7.74.

Drupal core no sanea apropiadamente determinados nombres de archivo en los archivos cargados, lo que puede conllevar a unos archivos ser interpretados como la extensión incorrecta y servir como el tipo MIME incorrecto o ser ejecutados como PHP para determinadas configuraciones de alojamiento. Este problema afecta: Drupal Drupal Core versiones 9.0 anteriores a 9.0.8, versiones 8.9 anteriores a 8.9.9, versiones 8.8 anteriores a 8.8.11 y versiones 7 anteriores a 7.74

Improper sanitization in the extension file names is present in Drupal core.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-05-28 CVE Reserved
  • 2020-11-20 CVE Published
  • 2022-01-18 Exploited in Wild
  • 2022-07-18 KEV Due Date
  • 2024-08-04 CVE Updated
  • 2024-09-09 EPSS Updated
  • ---------- First Exploit
CWE
  • CWE-434: Unrestricted Upload of File with Dangerous Type
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Drupal
Search vendor "Drupal"
 Drupal
Search vendor "Drupal" for product "Drupal"
 >= 7.0 < 7.74
Search vendor "Drupal" for product "Drupal" and version " >= 7.0 < 7.74"
-
Affected
Drupal
Search vendor "Drupal"
 Drupal
Search vendor "Drupal" for product "Drupal"
 >= 8.8 < 8.8.11
Search vendor "Drupal" for product "Drupal" and version " >= 8.8 < 8.8.11"
-
Affected
Drupal
Search vendor "Drupal"
 Drupal
Search vendor "Drupal" for product "Drupal"
 >= 8.9 < 8.9.9
Search vendor "Drupal" for product "Drupal" and version " >= 8.9 < 8.9.9"
-
Affected
Drupal
Search vendor "Drupal"
 Drupal
Search vendor "Drupal" for product "Drupal"
 >= 9.0 < 9.0.8
Search vendor "Drupal" for product "Drupal" and version " >= 9.0 < 9.0.8"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 32
Search vendor "Fedoraproject" for product "Fedora" and version "32"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 33
Search vendor "Fedoraproject" for product "Fedora" and version "33"
-
Affected