8.8

CVE-2021-27890

Exploit
SQL Injection vulnerablity in MyBB before 1.8.26 via theme properties included in theme XML files.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mybb ≫ Mybb Version < 1.8.26
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 10.59% 0.952
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd@nist.gov 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
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.

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
Third Party Advisory
Exploit
https://github.com/mybb/mybb/security/advisories/GHSA-r34m-ccm8-mfhq
Patch
Third Party Advisory
Release Notes