CVE-2023-52081
Severity CVSS v4.0:
Pending analysis
Type:
CWE-74
Injection
Publication date:
28/12/2023
Last modified:
29/02/2024
Description
ffcss is a CLI interface to apply and configure Firefox CSS themes. Prior to 0.2.0, the function `lookupPreprocess()` is meant to apply some transformations to a string by disabling characters in the regex `[-_ .]`. However, due to the use of late Unicode normalization of type NFKD, it is possible to bypass that validation and re-introduce all the characters in the regex `[-_ .]`. The `lookupPreprocess()` can be easily bypassed with equivalent Unicode characters like U+FE4D (﹍), which would result in the omitted U+005F (_), for instance. The `lookupPreprocess()` function is only ever used to search for themes loosely (case insensitively, while ignoring dashes, underscores and dots), so the actual security impact is classified as low. This vulnerability is fixed in 0.2.0. There are no known workarounds.
Impact
Base Score 3.x
5.30
Severity 3.x
MEDIUM
Vulnerable products and versions
CPE | From | Up to |
---|---|---|
cpe:2.3:a:ewen-lbh:firefox_css:*:*:*:*:*:go:*:* | 0.2.0 (excluding) |
To consult the complete list of CPE names with products and versions, see this page