What is the CVSS score of CVE-2021-26587?

CVE-2021-26587 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L. EPSS exploitation probability: 0.5%.

Storeonce 5200 Firmware CVE-2021-26587

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2021-09-27 security-alert@hpe.com

XSS Storeonce 5200 Firmware Storeonce 5650 Firmware Storeonce 5250 Firmware Storeonce 3640 Firmware Storeonce 3620 Firmware Storeonce Vsa 4Tb Firmware

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

CVE Published

Sep 27, 2021 - 15:15 nvd

MEDIUM 6.5

DescriptionNVD

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.

AnalysisAI

A potential DOM-based Cross Site Scripting security vulnerability has been identified in HPE StoreOnce. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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. Affected products include: Hpe Storeonce 5200 Firmware, Hpe Storeonce 5650 Firmware, Hpe Storeonce 5250 Firmware, Hpe Storeonce 3640 Firmware, Hpe Storeonce 3620 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.