CVE-2020-15111
MEDIUMDescription
In Fiber before version 1.12.6, the filename that is given in c.Attachment() (https://docs.gofiber.io/ctx#attachment) is not escaped, and therefore vulnerable for a CRLF injection attack. I.e. an attacker could upload a custom filename and then give the link to the victim. With this filename, the attacker can change the name of the downloaded file, redirect to another site, change the authorization header, etc. A possible workaround is to serialize the input before passing it to ctx.Attachment().
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Exploit Intelligence
Moderate risk: more likely to be exploited than 55% of all known CVEs.
References
Related Vulnerabilities
Other CWE-74 (Injection) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2013-2251 | Critical | 9.8 | 100% | KEV | Fix |
| CVE-2023-22527 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2019-2725 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2022-46169 | Critical | 9.8 | 100% | KEV | Fix |
| CVE-2022-35914 | Critical | 9.8 | 100% | KEV | - |
| CVE-2019-17558 | High | 7.5 | 99% | KEV | Fix |
Common questions
How do I fix CVE-2020-15111?
Upgrade fiber to 1.12.6 or later.
Is CVE-2020-15111 being actively exploited?
Not that we know of. CVE-2020-15111 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.86% is the estimated probability that it will be exploited in the next 30 days. That is higher than 55% of all scored CVEs.
How severe is CVE-2020-15111?
CVE-2020-15111 has a CVSS v3 base score of 4.2, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2020-15111 affect?
Published advisories record a fix for fiber (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2020-15111
Markdown
[](https://tridentstack.com/cve/CVE-2020-15111)HTML
<a href="https://tridentstack.com/cve/CVE-2020-15111"><img src="https://tridentstack.com/cve/badge/CVE-2020-15111.svg" alt="CVE-2020-15111"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.