CVE-2023-45139
High
Description
fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0.
SeverityHigh
CVSS7.5
Exploit probability—
ProductFonttools
PublishedJan 10, 2024
First seenJan 10, 2024
Weakness typeCWE-611XML external entity (XXE)
How to fix
Update
- fonttools fonttools4.43.0 or later
- fonttools4.43.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fonttools fonttools | 4.28.2 ≤ v < 4.43.0 | 4.43.0 |
| fonttoolsPyPI | 4.28.2 ≤ v < 4.43.0 | 4.43.0 |
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