CVE-2024-49193

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-12 · updated 2026-06-17
Weakness: CWE-290

Description

Zendesk before 2024-07-02 allows remote attackers to read ticket history via e-mail spoofing, because Cc fields are extracted from incoming e-mail messages and used to grant additional authorization for ticket viewing, the mechanism for detecting spoofed e-mail messages is insufficient, and the support e-mail addresses associated with individual tickets are predictable.

Affected products

Zendesk: before 20240702 — fixed in 20240702

How to fix

Upgrade to a fixed version: Zendesk 20240702. Check the vendor advisory for mitigations.

References

https://gist.github.com/hackermondev/68ec8ed145fcee49d2f5e2b9d2cf2e52
https://news.ycombinator.com/item?id=41818459
https://x.com/hackermondev/status/1844877950698537323

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