What’s Vulnerable › Vulnerabilities

CVE-2021-21515

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-01 · updated 2026-06-17
• Weakness: CWE-79

Description

Dell EMC SourceOne, versions 7.2SP10 and prior, contain a Stored Cross-Site Scripting vulnerability. A remote low privileged attacker may potentially exploit this vulnerability, to hijack user sessions or to trick a victim application user to unknowingly send arbitrary requests to the server.

Affected products

• Dell SourceOne: before 7.2; 7.2, 7.2-sp1, 7.2-sp2, 7.2-sp3, 7.2-sp4, 7.2-sp5 (+4) — fixed in 7.2

How to fix

Upgrade to a fixed version: Dell SourceOne 7.2. Check the vendor advisory for mitigations.

References

• https://www.dell.com/support/kbdoc/en-us/000183430/dsa-2021-043-dell-emc-sourceone-java-script-xss-stored-vulnerability
• https://www.dell.com/support/kbdoc/en-us/000183430/dsa-2021-043-dell-emc-sourceone-java-script-xss-stored-vulnerability

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