What is CVE-2021-27811?

CVE-2021-27811 is a high-severity vulnerability in Qibosoft, classified under Code Injection. CVSS score: 7.2/10. Published 2021-05-21.

How severe is CVE-2021-27811?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in Qibosoft

CVE-2021-27811

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.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.012 (64.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Qibosoft — versions 1.0
N/a — versions n/a

Weakness classification (CWE)

CWE-94 — Code Injection

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-27811?: CVE-2021-27811 is a high-severity vulnerability in Qibosoft, classified under Code Injection. CVSS score: 7.2/10. Published 2021-05-21.
How severe is CVE-2021-27811?: High severity. CVSS v3 base score is 7.2 out of 10.