CVE-2022-4646Network attack vector

Forced logout via CSRF-unprotected GET endpoint

Published Dec 22, 2022 · Updated Apr 9, 2025

Cross-site request forgery in IKUS Software Rdiffweb before 2.5.4 allows remote attackers to terminate an authenticated user's session. The /logout handler accepts state-changing GET requests without CSRF verification, allowing crafted cross-origin content to clear the active session. Exploitation requires an authenticated user to load attacker-controlled content, and the bounded consequence is forced logout rather than data access or modification.

CVSS severity5.3
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in IKUS Software Rdiffweb before 2.5.4 allows remote attackers to terminate an authenticated user's session. The /logout handler accepts state-changing GET requests without CSRF verification, allowing crafted cross-origin content to clear the active session. Exploitation requires an authenticated user to load attacker-controlled content, and the bounded consequence is forced logout rather than data access or modification.

The record

CVE
CVE-2022-4646
Published
Dec 22, 2022
Updated
Apr 9, 2025
Vendor
IKUS Software
Product
Rdiffweb
Classifications
CWE-352, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 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=unspecified <2.5.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IKUS Software · Rdiffwebversion=unspecified <2.5.4

Published CVSS scores

5.3CVE CNACVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.1GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5GitLab Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1499.004Application or System Exploitation

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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