CVE-2021-27890

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

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/mybb/mybb/security/advisories/GHSA-r34m-ccm8-mfhq	Patch Release Notes Third Party Advisory
http://packetstormsecurity.com/files/161908/MyBB-1.8.25-Remote-Command-Execution.html	Third Party Advisory VDB Entry
https://blog.sonarsource.com/mybb-remote-code-execution-chain	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*

Information

Published : 2021-03-15 11:15

Updated : 2021-09-21 10:48

NVD link : CVE-2021-27890

Mitre link : CVE-2021-27890

JSON object : View

CWE

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Products Affected

mybb

mybb

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8.8 /10