A potential DOM-based Cross Site Scripting security vulnerability has been identified in HPE StoreOnce.

published 2021-09-27 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13385

cvss: 6.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits: 0; none known

A potential DOM-based Cross Site Scripting security vulnerability has been identified in HPE StoreOnce. The vulnerability could be remotely exploited to cause an elevation of privilege leading to partial impact to confidentiality, availability, and integrity. HPE has made the following software update - HPE StoreOnce 4.3.0, to resolve the vulnerability in HPE StoreOnce.

Exploit prediction

0.50% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
NVD	2.0	6.0	AV:N/AC:M/Au:S/C:P/I:P/A:P

Affected products

n/a HPE StoreOnce 3620; HPE StoreOnce 3640; HPE StoreOnce 5200; HPE StoreOnce 5250; HPE StoreOnce 5650; HPE StoreOnce VSA 4TB

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

support.hpe.com /hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst04176en_us
vendor-advisory

Sources

CVE List CVE-2021-26587
NVD CVE-2021-26587

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Summary