// For flags

CVE-2021-27890

MyBB 1.8.25 - Chained Remote Command Execution

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

SQL Injection vulnerablity in MyBB before 1.8.26 via theme properties included in theme XML files.

Una vulnerabilidad de inyección SQL en MyBB versiones anteriores a 1.8.26, mediante las propiedades del tema incluyendo en los archivos XML del tema

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-03-02 CVE Reserved
  • 2021-03-15 CVE Published
  • 2021-03-22 First Exploit
  • 2024-08-03 CVE Updated
  • 2024-08-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mybb
Search vendor "Mybb"
 Mybb
Search vendor "Mybb" for product "Mybb"
 < 1.8.26
Search vendor "Mybb" for product "Mybb" and version " < 1.8.26"
-
Affected