CVE-2021-42080highCWE-79

CVE-2021-42080: high-severity vulnerability in OSNEXUS QuantaStor

Reflected XSS vulnerability in OSNEXUS QuantaStor before 6.0.0.355

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.4epss 0.7%
An attacker is able to launch a Reflected XSS attack using a crafted URL. POC: Visit the following URL https://<IPADDRESS>:8153/qstorapi/echo?inputMessage=<img%20src=x%20onerror=alert(document.cookie)>
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Affected products
OSNEXUS · QuantaStor
Related CVEs — OSNEXUS QuantaStor

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CVE-2021-42081CRITICALAuthenticated Remote Command Execution vulnerability in OSNEXUS QuantaStor before 6.0.0.355EPSS 1.2%CVE-2026-18265CRITICALOSNEXUS QuantaStor Missing Authentication Remote Code Execution VulnerabilityEPSS 1.0%CVE-2021-4406CRITICALAuthenticated Remote COmmand Execution as root in OSNEXUS QuantaStor version 6.0.0.355 and othersEPSS 1.0%CVE-2021-42079MEDIUMSSRF vulnerability in OSNEXUS QuantaStor before 6.0.0.355EPSS 0.7%CVE-2021-42083HIGHAuthenticated Stored XSS in OSNEXUS QuantaStor 6.0.0.335EPSS 0.5%CVE-2021-42082HIGHLocal Privilege Escalation to root in OSNEXUS QuantaStor before 6.0.0.355EPSS 0.2%