CVE-2025-42616Network attack vector

Unauthorized state changes via CSRF-prone GET endpoints

Published Dec 8, 2025 · Updated Dec 8, 2025

CSRF in CIRCL Vulnerability-Lookup before 2.18.0 allows remote attackers to perform unauthorized state changes through a logged-in user. State-changing web routes accept HTTP GET requests without enforcing POST semantics or validating a CSRF token, so cross-site requests run in the victim's session. Exploitation requires an authenticated user to visit attacker-controlled content; resulting actions can alter database records, user data, or configuration.

CVSS severity7.0
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in CIRCL Vulnerability-Lookup before 2.18.0 allows remote attackers to perform unauthorized state changes through a logged-in user. State-changing web routes accept HTTP GET requests without enforcing POST semantics or validating a CSRF token, so cross-site requests run in the victim's session. Exploitation requires an authenticated user to visit attacker-controlled content; resulting actions can alter database records, user data, or configuration.

The record

CVE
CVE-2025-42616
Published
Dec 8, 2025
Updated
Dec 8, 2025
Vendor
Computer Incident Response Center Luxembourg (CIRCL)
Product
Vulnerability-Lookup
Classifications
CWE-352, CAPEC-242, T1204.001
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 8, 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=0 <2.18.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Computer Incident Response Center Luxembourg (CIRCL) · Vulnerability-Lookupversion=0 <2.18.0

Published CVSS scores

7.0GNA-1CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/U:Green
7.0ENISACVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-242Code Injection
T1204.001Malicious Link

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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