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Fencer Vulns
medium 6.1

CVE-2021-37216 json

QSAN Storage Manager - Reflected Cross-Site Scripting

published 2021-08-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-23790

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.2%
EPSS 3.2% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known, plus a Nuclei check

Summary

QSAN Storage Manager header page parameters does not filter special characters. Remote attackers can inject JavaScript without logging in and launch reflected XSS attacks to access and modify specific data.

Exploit prediction

3.16% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template QSAN Storage Manager <3.3.3 - Cross-Site Scripting nuclei detection template

CVSS scores

assigned by version score vector
CNA 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • QSAN Storage Manager XN8008T
  • QSAN Storage Manager XN8024R

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.