CVE-2024-45240

JavaScript interface takeover via deeplink traversal

Published Aug 24, 2024 · Updated Nov 5, 2024

Improper input handling in TikTok before 34.5.5 for Android allows attackers to take over Lynxview JavaScript interfaces via a deeplink. The exposed WebView traverses a crafted deeplink into Lynxview and permits it to assume control of registered JavaScript interfaces. On Android 12 and later, exploitation requires a third-party application; successful exploitation grants control over actions exposed by those interfaces.

CVSS severity7.4
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper input handling in TikTok before 34.5.5 for Android allows attackers to take over Lynxview JavaScript interfaces via a deeplink. The exposed WebView traverses a crafted deeplink into Lynxview and permits it to assume control of registered JavaScript interfaces. On Android 12 and later, exploitation requires a third-party application; successful exploitation grants control over actions exposed by those interfaces.

The record

CVE
CVE-2024-45240
Published
Aug 24, 2024
Updated
Nov 5, 2024
Vendor
ByteDance
Product
TikTok
Classifications
T1658
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <34.5.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

ByteDance · TikTokversion=0 <34.5.5

Published CVSS scores

7.4CISA-ADPCVSS:3.1/AV:L/AC:H/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.

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

No observations available

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

Weakness, pattern, technique

T1658Exploitation for Client Execution

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo