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CVE-2021-27890

nvd nist
Published: Mar 15, 2021Modified: Jun 17, 2026

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: NVD

Description

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

Affected (1)

Products: Mybb: Mybb
Mybb
1 product
Mybb
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Mybb
Before 1.8.26

Related CWEs

CWE-89
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

References (6)

Source: cve@mitre.org
Third Party AdvisoryVDB Entry
Source: cve@mitre.org
ExploitThird Party Advisory
Source: cve@mitre.org
PatchRelease NotesThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchRelease NotesThird Party Advisory

Timeline

No history available yet.