CVE-2024-45186Public exploitNetwork attack vector

Unauthenticated credential disclosure via template injection

Published Oct 2, 2024 · Updated Oct 2, 2024

Server-side template injection in FileSender before 2.49 allows remote attackers to retrieve server credentials through crafted error data. An unauthenticated error route accepts a Base64-encoded JSON message, wraps its value in template delimiters, and resolves attacker-selected configuration keys. No authentication is required; exposed database or S3 credentials grant direct access to protected backing data.

CVSS severity9.8
Critical
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in FileSender before 2.49 allows remote attackers to retrieve server credentials through crafted error data. An unauthenticated error route accepts a Base64-encoded JSON message, wraps its value in template delimiters, and resolves attacker-selected configuration keys. No authentication is required; exposed database or S3 credentials grant direct access to protected backing data.

The record

CVE
CVE-2024-45186
Published
Oct 2, 2024
Updated
Oct 2, 2024
Vendor
FileSender
Product
FileSender
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.49

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FileSender · FileSenderversion=0 <2.49

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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