CVE-2021-20454 XML external entity in WebSphere Application Server

What is CVE-2021-20454?

CVE-2021-20454 is a high-severity vulnerability in Ibm Websphere Application Server, published on 21 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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 memory resources. IBM X-Force ID: 196649.

Weakness: CWE-611

Which versions are affected by CVE-2021-20454?

It affects 1 product.

Products include Ibm Websphere Application Server.

How do I fix CVE-2021-20454?

No fix has been published for CVE-2021-20454 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-20454 being exploited?

There is no known exploitation of CVE-2021-20454 in the wild and no public exploit code.

Other vulnerabilities in Ibm Websphere Application Server

• CVE-2015-1920 Code injection in n/a Critical 10.0
• CVE-2013-0462 Other in n/a Critical 10.0
• CVE-2011-1377 Security feature bypass in n/a Critical 10.0
• CVE-2010-3186 Other in n/a Critical 10.0
• CVE-2009-1899 Information disclosure in n/a Critical 10.0

All Ibm Websphere Application Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hfxg-757p-q6w7.