SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2024-23692

Rejetto HTTP File Server Improper Neutralization of Special Elements Used in a Template Engine Vulnerability

KEVEXPLOITCRITICAL 9.8EPSS 99.5%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 30 July 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

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.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
99.48% probability · 100th percentile
Public exploits
1 in Exploit-DB · first 28 March 2025
CISA KEV
Listed 9 July 2024 · due 30 July 2024 · used in ransomware campaigns
Weakness
CWE-1336, CWE-94
Affected
rejetto/http file server
Source
disclosure@vulncheck.com
EPSS trend
0%50%100%30 October 2026: 99.48%30 October 202630 October 2026

EPSS 99.5% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. The patched Rejetto HTTP File Server (HFS) is version 3: https://github.com/rejetto/hfs?tab=readme-ov-file#installation, https://www.rejetto.com/hfs/ ; https://nvd.nist.gov/vuln/detail/CVE-2024-23692

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-52102source ↗Rejetto HTTP File Server 2.3m - Remote Code Execution (RCE)typescript · VeryLazyTechwebapps28 March 2025no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.