CVE-2024-29309Public exploitNetwork attack vector

Remote code execution via reflected error class

Published May 2, 2024 · Updated Aug 13, 2024

Code injection in Hyland Alfresco Content Services before 23.3.0.23 allows remote attackers to execute arbitrary code through Transfer Service. A malicious Transfer Receiver returns an errorType naming an attacker-chosen class, and ExceptionJsonSerializer loads and reflectively instantiates it. Exploitation requires enabled replication and a transfer target directed to the malicious receiver; the constructed class runs in the repository process.

CVSS severity7.7
High
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Hyland Alfresco Content Services before 23.3.0.23 allows remote attackers to execute arbitrary code through Transfer Service. A malicious Transfer Receiver returns an errorType naming an attacker-chosen class, and ExceptionJsonSerializer loads and reflectively instantiates it. Exploitation requires enabled replication and a transfer target directed to the malicious receiver; the constructed class runs in the repository process.

The record

CVE
CVE-2024-29309
Published
May 2, 2024
Updated
Aug 13, 2024
Vendor
Hyland
Product
Alfresco Content Services
Classifications
CWE-94, CAPEC-242, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 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=23.3.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hyland · Alfresco Content Servicesversion=23.3.0.7

Published CVSS scores

7.7CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

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-94Improper Control of Generation of Code ('Code Injection')
CAPEC-242Code Injection
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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