High severity · published May 21, 2021
CVE-2021-27811
A code injection vulnerability has been discovered in the Upgrade function of QibosoftX1 v1.0
7.2
CVSS
1.2%
EPSS
No
On KEV
Description
A code injection vulnerability has been discovered in the Upgrade function of QibosoftX1 v1.0. An attacker is able execute arbitrary PHP code via exploitation of client_upgrade_edition.php and Upgrade.php.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QI
Qibosoft · Qibosoft
1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27811
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27811
Exploit
https://github.com/whiskey-jj/w2s2x2222.github.io/issues/2
Third Party Advisory
https://www.cnvd.org.cn/flaw/show/2297879
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