CVE-2025-49597

Code execution via unserialized CallbackCollection gadget

Published Jun 13, 2025 · Updated Jun 23, 2025

Deserialization gadget in Handcrafted in the Alps Goodby CSV before 1.4.3 allows attackers to execute code in a vulnerable host application. CallbackCollection permits PHP object restoration because it lacks a __wakeup guard, allowing the class to participate in a gadget chain. Exploitation requires a separate application flaw that passes attacker-controlled data to unserialize(), and no direct goodby-csv exploit is known.

CVSS severity3.9
Low
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization gadget in Handcrafted in the Alps Goodby CSV before 1.4.3 allows attackers to execute code in a vulnerable host application. CallbackCollection permits PHP object restoration because it lacks a __wakeup guard, allowing the class to participate in a gadget chain. Exploitation requires a separate application flaw that passes attacker-controlled data to unserialize(), and no direct goodby-csv exploit is known.

The record

CVE
CVE-2025-49597
Published
Jun 13, 2025
Updated
Jun 23, 2025
Vendor
Handcrafted in the Alps
Product
Goodby CSV
Classifications
CWE-915
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2025Record 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=< 1.4.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Handcrafted in the Alps · Goodby CSVversion=< 1.4.3

Published CVSS scores

3.9GitHubCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-915Improperly Controlled Modification of Dynamically-Determined Object Attributes

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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