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UK Cyber Defence
VulnerabilityModified

CVE-2017-9979

An attacker can leverage this issue by including arbitrary HTML or JavaScript code as a parameter, aka XSS.

EXPLOITMEDIUM 6.1EPSS 2.56%

Does this matter?

A public exploit is published in Exploit-DB, so the technical barrier is gone even though the severity is medium and EPSS is 2.6%. Treat it as high on anything reachable from the internet.

Description

On the OSNEXUS QuantaStor v4 virtual appliance before 4.3.1, if the REST call invoked does not exist, an error will be triggered containing the invalid method previously invoked. The response sent to the user isn't sanitized in this case. An attacker can leverage this issue by including arbitrary HTML or JavaScript code as a parameter, aka XSS.

CVSS 3.0
6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
2.56% probability · 85th percentile
Public exploits
1 in Exploit-DB · first 18 August 2017
CISA KEV
Not listed
Weakness
CWE-79
Affected
osnexus/quantastor
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 2.56%27 October 202627 October 2026

EPSS 2.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-42517source ↗QuantaStor Software Defined Storage < 4.3.1 - Multiple Vulnerabilitiesxml · VVVSecuritywebapps18 August 2017no

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.