CVE-2024-25634Public exploitNetwork attack vector

Cross-organizer e-mail disclosure via unchecked event identifier

Published Feb 19, 2024 · Updated Aug 1, 2024

Improper access control in alf.io before 2.0-M4-2402 allows remote authenticated users to read other organizers' e-mail logs. EmailMessageApiController accepts an event identifier in an admin e-mail-log request without verifying that the requesting principal can access that event. An account with back-office access to one organizer can substitute another event's identifier and receive that event's e-mail-log records.

CVSS severity7.2
High
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in alf.io before 2.0-M4-2402 allows remote authenticated users to read other organizers' e-mail logs. EmailMessageApiController accepts an event identifier in an admin e-mail-log request without verifying that the requesting principal can access that event. An account with back-office access to one organizer can substitute another event's identifier and receive that event's e-mail-log records.

The record

CVE
CVE-2024-25634
Published
Feb 19, 2024
Updated
Aug 1, 2024
Vendor
Alf.io
Product
alf.io
Classifications
CWE-497, T1213
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=0 <2.0-m4-2402
  2. Affected versionversion=< 2.0-M4-2402

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Alf.io · alf.ioversion=0 <2.0-m4-2402; version=< 2.0-M4-2402

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-497Exposure of Sensitive System Information to an Unauthorized Control Sphere
T1213Data from Information Repositories

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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