CVE-2022-28730: Apache JSPWiki Cross-site scripting vulnerability on AJAXPreview.jsp

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 86.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-08-04 · updated 2026-06-17
Weakness: CWE-79

Description

A carefully crafted request on AJAXPreview.jsp could trigger an XSS vulnerability on Apache JSPWiki, which could allow the attacker to execute javascript in the victim's browser and get some sensitive information about the victim. This vulnerability leverages CVE-2021-40369, where the Denounce plugin dangerously renders user-supplied URLs. Upon re-testing CVE-2021-40369, it appears that the patch was incomplete as it was still possible to insert malicious input via the Denounce plugin. Apache JSPWiki users should upgrade to 2.11.3 or later.

Affected products

Apache Software Foundation Apache JSPWiki: before 2.11.3 — fixed in 2.11.3

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache JSPWiki 2.11.3. Check the vendor advisory for mitigations.

References

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