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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| org.apache.nifi:nifi-web-ui | maven | >= 1.10.0, < 1.28.0 | 1.28.0 |
| org.apache.nifi:nifi-web-ui | maven | >= 2.0.0-M1, < 2.0.0-M4 | 2.0.0-M4 |
The vulnerability stems from unescaped parameter descriptions being rendered in tooltips. The GitHub patch shows the fix added nfCommon.escapeHtml() to sanitize parameter.description in the qtip content configuration. The pre-patch code (line 2197) lacked this sanitization, making it vulnerable to XSS via crafted parameter descriptions. The direct correlation between the vulnerability description and the specific code change indicates this was the vulnerable code path.
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