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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2024-11023

16
FAUCET Score

CVE-2024-11023 is a medium-severity vulnerability affecting the Firebase JavaScript SDK, specifically versions prior to 10.9.0. It allows an attacker to manipulate the "_authTokenSyncURL" field within the "FIREBASE_DEFAULTS" cookie, redirecting session synchronization to a malicious server and potentially capturing user session data. The attack requires user interaction (UI:R) and has low impact on confidentiality and integrity (C:L, I:L). There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.9.0CPE matchmatch criteria
cpe:2.3:a:google:firebase_javascript_sdk:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.2MEDIUM

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
ACTIVE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
HIGH
SS Integrity
HIGH
SS Availability
HIGH
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.13%
Probability of exploitation in next 30 days
EPSS Percentile
2.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0013 is in the 1st percentile among its peer group of 26,221 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: firebaseFixed in: 10.9.0

Vendor Advisories (1)

npmGHSA-3wf4-68gx-mph8medium

Firebase JavaScript SDK allows attackers to manipulate the "_authTokenSyncURL" to point to their own server

Nov 18, 2024

References

firebase.google.com / support/release-notes/js
Release Notes
github.com / firebase/firebase-js-sdk/pull/8056
Issue TrackingPatch