CVE-2021-20481

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-10-07 · updated 2026-06-17
Weakness: CWE-79

Description

IBM Sterling File Gateway 2.2.0.0 through 6.1.1.0 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 197503.

Affected products

IBM Sterling File Gateway: from 2.2.0.0 through 5.2.6.5_3; from 6.0.0.0 through 6.0.0.6; from 6.0.1.0 through 6.0.3.4; from 6.1.0.0 through 6.1.0.1

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/197503
https://www.ibm.com/support/pages/node/6496781
https://exchange.xforce.ibmcloud.com/vulnerabilities/197503
https://www.ibm.com/support/pages/node/6496781

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