How severe is CVE-2021-20454?

High severity. CVSS v3 base score is 8.2 out of 10.

Is CVE-2021-20454 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Ibm Websphere Application Server

CVE-2021-20454

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume m…

EPSS: 0.001 (27.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.0/I:N/PR:N/AC:L/A:L/UI:N/AV:N/S:U/C:H/RL:O/E:U/RC:C.

Affected products

Ibm Websphere Application Server — versions 7.0, 8.0, 8.5

Public proof-of-concept exploits

r00t4dm/r00t4dm

References

www.ibm.com/support/pages/node/6445481 (x_refsource_CONFIRM)
ibm-was-cve202120454-xxe (196649) (vdb-entry, x_refsource_XF)

Frequently asked questions

What is CVE-2021-20454?: CVE-2021-20454 is a high-severity vulnerability in Ibm Websphere Application Server. CVSS score: 8.2/10. Published 2021-04-21.
How severe is CVE-2021-20454?: High severity. CVSS v3 base score is 8.2 out of 10.
Is CVE-2021-20454 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.