XML entity expansion in XMLBeans
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-23926 |
| CWE-ID | CWE-776 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
XMLBeans Universal components / Libraries / Libraries used by multiple products |
| Vendor | Apache Foundation |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) XML Entity Expansion
EUVDB-ID: #VU49517
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-23926
CWE-ID:
CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to improper input validation when processing XML data. A remote attacker can pass specially crafted XML data to the application and perform XML Entity Expansion attacks.
Install updates from vendor's website.
Vulnerable software versionsXMLBeans: 1.0.0 - 2.6.0
External linkshttp://seclists.org/oss-sec/2021/q1/38
http://issues.apache.org/jira/browse/XMLBEANS-517
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
