CVE-2024-28215Public exploitNetwork attack vector

Unauthenticated webhook modification via missing access check

Published Mar 7, 2024 · Updated Sep 6, 2024

Missing authorization in nGrinder before 3.5.9 allows remote attackers to alter webhooks and obtain test data through crafted API requests. The WebhookApiController save method accepts a caller-supplied payload URL and creator ID without verifying authentication or ownership. No account is required; an outbound request and resulting disclosure occur after a performance test triggers the attacker-controlled webhook.

CVSS severity7.5
High
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

Missing authorization in nGrinder before 3.5.9 allows remote attackers to alter webhooks and obtain test data through crafted API requests. The WebhookApiController save method accepts a caller-supplied payload URL and creator ID without verifying authentication or ownership. No account is required; an outbound request and resulting disclosure occur after a performance test triggers the attacker-controlled webhook.

The record

CVE
CVE-2024-28215
Published
Mar 7, 2024
Updated
Sep 6, 2024
Vendor
NAVER Corporation
Product
nGrinder
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 6, 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 <3.5.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

NAVER Corporation · nGrinderversion=0 <3.5.9

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.

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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-862Missing Authorization
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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