CVE-2021-34167Public exploitNetwork attack vector

Administrator access via tokenless state-changing requests

Published Feb 24, 2023 · Updated Mar 12, 2025

Cross-site request forgery in taoCMS 3.0.2 allows remote attackers to create an administrator account through admin.php. The admin.php handler accepts state-changing POST parameters for account creation and password updates under the administrator's session without validating a CSRF token. Exploitation requires a logged-in administrator to open a malicious page, after which remote attackers can add an administrator account or replace the administrator's password.

CVSS severity8.8
High
EPSS probability0.42%
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 taoCMS 3.0.2 allows remote attackers to create an administrator account through admin.php. The admin.php handler accepts state-changing POST parameters for account creation and password updates under the administrator's session without validating a CSRF token. Exploitation requires a logged-in administrator to open a malicious page, after which remote attackers can add an administrator account or replace the administrator's password.

The record

CVE
CVE-2021-34167
Published
Feb 24, 2023
Updated
Mar 12, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352, CWE-352, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 12, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CWE-352Cross-Site Request Forgery (CSRF)
T1098Account Manipulation

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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