CVE-2020-36534Public exploitNetwork attack vector

Forced logout via disabled CSRF validation

Published Jun 3, 2022 · Updated Apr 15, 2025

Cross-site request forgery in Noumo EasyiiCMS allows remote attackers to terminate an authenticated user's session via /admin/sign/out. SignController disables CSRF validation for the controller, and actionOut accepts the forged request and calls Yii's logout operation without verifying request intent. A victim must be signed in and induced to load the crafted request; the resulting impact is limited to forced logout of that session.

CVSS severity6.5
Medium
EPSS probability0.45%
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 Noumo EasyiiCMS allows remote attackers to terminate an authenticated user's session via /admin/sign/out. SignController disables CSRF validation for the controller, and actionOut accepts the forged request and calls Yii's logout operation without verifying request intent. A victim must be signed in and induced to load the crafted request; the resulting impact is limited to forced logout of that session.

The record

CVE
CVE-2020-36534
Published
Jun 3, 2022
Updated
Apr 15, 2025
Vendor
Noumo
Product
EasyiiCMS
Classifications
CWE-352
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 3, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 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?

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  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Noumo · EasyiiCMSversion=n/a

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A: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.

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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-352Cross-Site Request Forgery (CSRF)

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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