CVE-2021-27811

PoC —

CVSS 3.1

7.2 high

EPSS

1%p66

Published

May 21, 2021 (May 21, 2021)

Modified

Jun 17, 2026

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.

Vendors: qibosoft
Products: qibosoft
Weakness: CWE-94
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.2%)

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