CVE-2021-41916Public exploitNetwork attack vector

Administrative account creation via missing CSRF tokens

Published Oct 8, 2021 · Updated Aug 4, 2024

Cross-site request forgery in webTareas 2.4 and earlier allows remote attackers to create administrative accounts through a victim administrator. The /userprofiles/edituserprofile.php and /users/edituser.php handlers accept state-changing POST requests without CSRF tokens. Exploitation requires an authenticated administrator to visit attacker-controlled content, after which the server adds a chosen profile and user.

CVSS severity8.8
High
EPSS probability0.82%
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 webTareas 2.4 and earlier allows remote attackers to create administrative accounts through a victim administrator. The /userprofiles/edituserprofile.php and /users/edituser.php handlers accept state-changing POST requests without CSRF tokens. Exploitation requires an authenticated administrator to visit attacker-controlled content, after which the server adds a chosen profile and user.

The record

CVE
CVE-2021-41916
Published
Oct 8, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352, T1136
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

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)
T1136Create Account

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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