CVE-2024-45518Network attack vector

Authenticated internal-service access via flawed SSRF allowlist

Published Oct 22, 2024 · Updated Oct 22, 2024

SSRF in affected Zimbra Collaboration releases allows remote authenticated users to send unauthorized requests to internal services. The affected request-handling path inadequately sanitizes attacker-controlled destinations and misapplies its domain allowlist. A valid user account is required; successful SSRF reaches internal HTTP services and supports code execution only when chained with command injection or existing XSS.

CVSS severity8.8
High
EPSS probability20.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in affected Zimbra Collaboration releases allows remote authenticated users to send unauthorized requests to internal services. The affected request-handling path inadequately sanitizes attacker-controlled destinations and misapplies its domain allowlist. A valid user account is required; successful SSRF reaches internal HTTP services and supports code execution only when chained with command injection or existing XSS.

The record

CVE
CVE-2024-45518
Published
Oct 22, 2024
Updated
Oct 22, 2024
Vendor
Zimbra
Product
Zimbra Collaboration
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 22, 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=10.0.0 <10.0.9
  2. Affected versionversion=10.1.0 <10.1.1
  3. Affected versionversion=8.8.15 <patch46
  4. Affected versionversion=9.0.0 <patch41

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Zimbra · Zimbra Collaborationversion=10.0.0 <10.0.9; version=10.1.0 <10.1.1; version=8.8.15 <patch46; version=9.0.0 <patch41

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

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

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Your stack

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