CVE-2026-120421Medium· 6.1▾ SunlitIn Eclipse Mojarra versions 2.2.0 through 4.0.28, 4.1.0 through 4.1.19, and 5.0.0-M1 through 5.0.0-M11, when URL client window mode is enabled (`jakarta.faces.CLIENT_WINDOW_MODE=url`), the client window id from the `jfwid` or `jakarta.fa…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 33.6 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
In Eclipse Mojarra versions 2.2.0 through 4.0.28, 4.1.0 through 4.1.19, and 5.0.0-M1 through 5.0.0-M11, when URL client window mode is enabled (jakarta.faces.CLIENT_WINDOW_MODE=url), the client window id from the jfwid or jakarta.faces.ClientWindow request parameter is appended to generated URLs without URL-encoding. h:button renders such a URL into a JavaScript string literal, which allows reflected cross-site scripting. With com.sun.faces.enableCspNonce=true, the injected script runs on page load inside the nonce script element, bypassing the Content Security Policy.
eclipse_mojarra >= 2.2.0 < 4.0.29eclipse_mojarra >= 4.1.0 < 4.1.20eclipse_mojarra >= 5.0.0-M1 < 5.0.0-M12Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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