How severe is CVE-2021-25956?

CVE-2021-25956 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-25956 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25956?

CVE-2021-25956 primarily affects Dolibarr. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-25956?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-25956 published?

CVE-2021-25956 was published on 2021-08-17 and last updated on 2026-06-17.

CVE-2021-25956

CVE-2021-25956 is a medium-severity vulnerability in Dolibarr with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 6.5
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Dolibarr
Published: 2021-08-17
Last modified: 2026-06-17

Description

In “Dolibarr” application, v3.3.beta1_20121221 to v13.0.2 have “Modify” access for admin level users to change other user’s details but fails to validate already existing “Login” name, while renaming the user “Login”. This leads to complete account takeover of the victim user. This happens since the password gets overwritten for the victim user having a similar login name.

Frequently asked questions

What is CVE-2021-25956?: In “Dolibarr” application, v3.3.beta1_20121221 to v13.0.2 have “Modify” access for admin level users to change other user’s details but fails to validate already existing “Login” name, while renaming the user “Login”. This leads to complete account takeover of the victim user. This happens since the password gets overwritten for the victim user having a similar login name.
How severe is CVE-2021-25956?: CVE-2021-25956 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-25956 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25956?: CVE-2021-25956 primarily affects Dolibarr. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-25956?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25956 published?: CVE-2021-25956 was published on 2021-08-17 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:dolibarr:dolibarr:*:*:*:*:*:*:*:*
cpe:2.3:a:dolibarr:dolibarr_erp\/crm:3.3.0:beta1:*:*:*:*:*:*
cpe:2.3:a:dolibarr:dolibarr_erp\/crm:3.3.0:beta2:*:*:*:*:*:*

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