CVE-2022-24891

Publication date 27 April 2022

Last updated 16 April 2026

Ubuntu priority

Cvss 3 Severity Score

Description

ESAPI (The OWASP Enterprise Security API) is a free, open source, web application security control library. Prior to version 2.3.0.0, there is a potential for a cross-site scripting vulnerability in ESAPI caused by a incorrect regular expression for "onsiteURL" in the **antisamy-esapi.xml** configuration file that can cause "javascript:" URLs to fail to be correctly sanitized. This issue is patched in ESAPI 2.3.0.0. As a workaround, manually edit the **antisamy-esapi.xml** configuration files to change the "onsiteURL" regular expression. More information about remediation of the vulnerability, including the workaround, is available in the maintainers' release notes and security bulletin.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libowasp-esapi-java	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Fixed 2.2.3.1-1ubuntu0.1~esm1
	21.10 impish	Ignored end of life
	20.04 LTS focal	Fixed 2.1.0-3ubuntu0.20.04.1~esm1
	18.04 LTS bionic	Fixed 2.1.0-3ubuntu0.18.04.1~esm1
	16.04 LTS xenial	Fixed 2.1.0-2ubuntu0.1~esm1

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libowasp-esapi-java	Upstream: 9473bf4

Severity score breakdown

Parameter	Value
Base score	5.4 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	Low
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

USN-8181-1
ESAPI vulnerabilities
16 April 2026