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CVE-2023-43992· NVD / CVE Program· CNA mitre

An issue in STOCKMAN GROUP mini-app on Line v13.6.1 allows attackers to send crafted malicious notifications via leakage of the channel acce

An issue in STOCKMAN GROUP mini-app on Line v13.6.1 allows attackers to send crafted malicious notifications via leakage of the channel access token.

MediumCVSS 5.4 · v3.1—No exploit No fix recorded
Published
Jan 24, 2024
Updated
Jun 17, 2026
EPSS
0.4% · 27th percentile
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Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Affected systems

VendorProduct
linecorpline

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linecorp line13.6.1

Same product

linecorp: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-5554Lack of TLS certificate verification in log transmission of a financial module within LINE client for iOS prior to 13.16.0.
    39Monitor
  • CVE-2016-4850LINE for Windows before 4.8.3 allows man-in-the-middle attackers to execute arbitrary code.
    33Monitor
  • CVE-2023-45559An issue in Tamaki_hamanoki Line v.13.6.1 allows attackers to send crafted notifications via leakage of the channel access token.
    32Monitor
  • CVE-2023-43305An issue in studio kent mini-app on Line v13.6.1 allows attackers to send crafted malicious notifications via leakage of the channel access
    32Monitor
  • CVE-2023-43304An issue in PARK DANDAN mini-app on Line v13.6.1 allows attackers to send crafted malicious notifications via leakage of the channel access
    32Monitor
  • CVE-2023-43303An issue in craftbeer bar canvas mini-app on Line v13.6.1 allows attackers to send crafted malicious notifications via leakage of the channe
    32Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2023-3884591 days apartAn issue in Anglaise Company Anglaise.Company v.13.6.1 allows a remote attacker to obtain sensitive information via crafted GET request.
    30Monitor
  • CVE-2023-3884691 days apartAn issue in Marbre Lapin Line v.13.6.1 allows a remote attacker to obtain sensitive information via crafted GET request.
    30Monitor
  • CVE-2023-3884791 days apartAn issue in CHRISTINA JAPAN Line v.13.6.1 allows a remote attacker to obtain sensitive information via crafted GET request.
    30Monitor
  • CVE-2023-3884991 days apartAn issue in tire-sales Line v.13.6.1 allows a remote attacker to obtain sensitive information via crafted GET request.
    30Monitor
  • CVE-2023-439930 days apartAn issue in smaregi_app_market mini-app on Line v13.6.1 allows attackers to send crafted malicious notifications via leakage of the channel
    21Monitor
  • CVE-2023-439940 days apartAn issue in Cleaning_makotoya mini-app on Line v13.6.1 allows attackers to send crafted malicious notifications via leakage of the channel a
    21Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

nvd-primary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

The bug in code

The whole CWE-200 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

json
{  "permissions": ["tabs", "<all_urls>"],  "background": { "service_worker": "analytics.js" }}

Fixed

json
{  "permissions": ["activeTab"],  "host_permissions": ["https://yildiz.example/*"]}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

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