Description
Let's Encrypt client and ACME library written in Go (Lego). Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to write attacker-influenced content to any path writable by the lego process. This vulnerability is fixed in 4.34.0.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| github.com/go-acme/lego | โ | โ |
| github.com/go-acme/lego/v3 | โ | โ |
| github.com/go-acme/lego/v4 | โ | โ |
| unknown | โ | โ |
References
Similar Threats
- Low CVE-2025-54799
Free Vulnerability Check
Is your WordPress site affected?
BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against known CVE records.
Scan My Site Free โNo credit card required ยท Results in minutes
ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.