| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 52.3.0< 55.0 | 52.3.055.0 |
The Developer Tools feature suffers from a XUL injection vulnerability due to improper sanitization of the web page source code. In the worst case, this could allow arbitrary code execution when opening a malicious page with the style editor tool. This vulnerability affects Firefox ESR < 52.3 and Firefox < 55.
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