MEDIUMCVSS v3.1 6.1Vulnerability
CVE-2026-120421
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.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-11-04T17:37:42.865599+00:00
- Cvss score
- 6.1
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-11-04T17:38:51+00:00
- Score
- 6.1
- Last source
- NVD
- Cvss version
- 3.1
- Cve id
- CVE-2026-120421
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- First seen by Signal
- 2026-11-04T17:38:51+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Published at
- 2026-11-04T15:17:41.590
- Last modified
- 2026-11-04T15:17:41.590
Related Entities (1)
HAS_WEAKNESS (1)
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