CVE-2024-49193Known exploitationPublic exploitNetwork attack vector

Ticket-history disclosure via spoofed Cc authorization

Published Oct 12, 2024 · Updated Oct 16, 2024

Authentication bypass in Zendesk before 2024-07-02 allows remote attackers to read ticket history through spoofed email messages. Inbound email processing trusts a spoofed sender, extracts Cc recipients, and grants them ticket-view authorization without adequate sender verification. Exploitation requires a predictable per-ticket support address, the requester's email address, and a public support portal; it exposes ticket history without reported modification or disruption.

CVSS severity7.5
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Zendesk before 2024-07-02 allows remote attackers to read ticket history through spoofed email messages. Inbound email processing trusts a spoofed sender, extracts Cc recipients, and grants them ticket-view authorization without adequate sender verification. Exploitation requires a predictable per-ticket support address, the requester's email address, and a public support portal; it exposes ticket history without reported modification or disruption.

The record

CVE
CVE-2024-49193
Published
Oct 12, 2024
Updated
Oct 16, 2024
Vendor
Zendesk
Product
Zendesk
Classifications
CWE-290, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 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 <20240702

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Zendesk · Zendeskversion=0 <20240702

Published CVSS scores

7.5CISA ADP VulnrichmentCVSS: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 exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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