---
title: "CVE-2024-23692: Rejetto HTTP File Server Improper Neutralization of Special Elements Used in a Template Engine Vulnerability"
url: https://erroneo.us/security/cve/CVE-2024-23692/
description: "CVE-2024-23692 (Rejetto HTTP File Server): Exploited in the wild (CISA KEV). Rejetto HTTP File Server, up to and including version 2.3m, is vulnerable to a…"
type: vulnerability-record
section: "Security Digest"
date_published: 2024-05-31
date_modified: 2026-08-11
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2024-23692"
kev: true
cvss: 9.8
epss: 0.99485
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2024-23692: Rejetto HTTP File Server Improper Neutralization of Special Elements Used in a Template Engine Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Rejetto HTTP File Server. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-07-09, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-07-30 ; treat that as the outer limit, not the target. CISA also lists it as known to be used in ransomware campaigns .
- EPSS 99.5% , percentile 99.9: FIRST’s model estimates a 99.5% chance of exploitation activity in the next 30 days, higher than 99.9% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.

## What it is

Rejetto HTTP File Server, up to and including version 2.3m, is vulnerable to a template injection vulnerability. This vulnerability allows a remote, unauthenticated attacker to execute arbitrary commands on the affected system by sending a specially crafted HTTP request. As of the CVE assignment date, Rejetto HFS 2.3m is no longer supported.

## Affected products (CVE record)

- Rejetto HTTP File Server: <= 2.3m

## Severity

- VulnCheck CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2024-07-09; federal due date 2024-07-30. Known ransomware use: Known.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 99.48% probability of exploitation activity in the next 30 days; percentile 99.9.

## Sources

- [Listed in CISA KEV notes (github.com)](https://github.com/rejetto/hfs?tab=readme-ov-file#installation)
- [Listed in CISA KEV notes (rejetto.com)](https://www.rejetto.com/hfs/)
- [CVE.org record CVE-2024-23692](https://www.cve.org/CVERecord?id=CVE-2024-23692)
- [NVD entry CVE-2024-23692](https://nvd.nist.gov/vuln/detail/CVE-2024-23692)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-23692)
- [vulncheck.com](https://vulncheck.com/advisories/rejetto-unauth-rce)
- [mohemiv.com](https://mohemiv.com/all/rejetto-http-file-server-2-3m-unauthenticated-rce/)
- [github.com](https://github.com/rapid7/metasploit-framework/pull/19240)
- [vicarius.io](https://www.vicarius.io/vsociety/posts/unauthenticated-rce-flaw-in-rejetto-http-file-server-cve-2024-23692)
- [vicarius.io](https://www.vicarius.io/vsociety/posts/cve-2024-23692-detect-rejetto-hfs-vulnerability)
- [vicarius.io](https://www.vicarius.io/vsociety/posts/cve-2024-23692-rejetto-hfs-mitigate-vulnerability)

---
Source page: https://erroneo.us/security/cve/CVE-2024-23692/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt