SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-42080

An attacker is able to launch a Reflected XSS attack using a crafted URL.

HIGH 7.4EPSS 0.69%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.69%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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
7.4 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
EPSS
0.69% probability · 51th percentile
CISA KEV
Not listed
Weakness
CWE-79
Affected
osnexus/quantastor
Source
csirt@divd.nl

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.