CVE-2024-4128Network attack vector

Emulator data exfiltration via browser-triggered export

Published May 2, 2024 · Updated Aug 1, 2024

CSRF in Firebase CLI before 13.6.0 allows remote attackers to exfiltrate emulator data through a browser request to localhost. The EmulatorHub export route accepts browser-originated POST requests and exports emulator data to a requested path without rejecting the Origin header. Exploitation requires the emulator suite to be running and a user to visit a malicious site in a browser that permits localhost calls, such as Chrome before 94.

CVSS severity2.6
Low
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in Firebase CLI before 13.6.0 allows remote attackers to exfiltrate emulator data through a browser request to localhost. The EmulatorHub export route accepts browser-originated POST requests and exports emulator data to a requested path without rejecting the Origin header. Exploitation requires the emulator suite to be running and a user to visit a malicious site in a browser that permits localhost calls, such as Chrome before 94.

The record

CVE
CVE-2024-4128
Published
May 2, 2024
Updated
Aug 1, 2024
Vendor
Kreait
Product
Firebase Admin SDK for PHP
Classifications
CWE-352, T1204.001
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. May 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Kreait · Firebase Admin SDK for PHPversion=0
Firebase · Firebase CLIversion=0 <=13.6.0

Published CVSS scores

2.6GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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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