// For flags

CVE-2020-21524

 

Severity Score

9.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

There is a XML external entity (XXE) vulnerability in halo v1.1.3, The function of importing other blogs in the background(/api/admin/migrations/wordpress) needs to parse the xml file, but it is not used for security defense, This vulnerability can detect the intranet, read files, enable ddos attacks, etc. exp:https://github.com/halo-dev/halo/issues/423

Se presenta una vulnerabilidad de tipo XML external entity (XXE) en halo versión v1.1.3, la función de importar otros blogs en la función background(/api/admin/migrations/wordpress) necesita analizar el archivo xml, pero no es usada para la defensa de seguridad. Esta vulnerabilidad puede detectar la intranet, leer archivos, habilitar ataques ddos, etc. exp:https://github.com/halo-dev/halo/issues/423

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-08-13 CVE Reserved
  • 2020-09-30 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • 2024-09-06 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-611: Improper Restriction of XML External Entity Reference
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Halo
Search vendor "Halo"
Halo
Search vendor "Halo" for product "Halo"
1.1.3
Search vendor "Halo" for product "Halo" and version "1.1.3"
-
Affected