CVE-2021-25956Network attack vector

Account takeover via duplicate-login user update

Published Aug 17, 2021 · Updated Sep 16, 2024

Improper access control in Dolibarr ERP & CRM 3.3.beta1_20121221 through 13.0.2 allows remote authenticated users to take over accounts. The User::update method persisted a renamed login without checking whether it already belonged to another same-entity user, allowing the update path to overwrite the victim's password. Administrative access to user modification is required, and successful exploitation grants control of the colliding victim account.

CVSS severity7.2
High
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Dolibarr ERP & CRM 3.3.beta1_20121221 through 13.0.2 allows remote authenticated users to take over accounts. The User::update method persisted a renamed login without checking whether it already belonged to another same-entity user, allowing the update path to overwrite the victim's password. Administrative access to user modification is required, and successful exploitation grants control of the colliding victim account.

The record

CVE
CVE-2021-25956
Published
Aug 17, 2021
Updated
Sep 16, 2024
Vendor
Dolibarr Foundation
Product
Dolibarr ERP & CRM
Classifications
CWE-284, CWE-287, T1098
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 17, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.3.beta1_20121221 <*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Dolibarr Foundation · Dolibarr ERP & CRMversion=3.3.beta1_20121221 <*

Published CVSS scores

7.2GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.7UbuntuCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-287Improper Authentication
T1098Account Manipulation

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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