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CVE Record

CVE-2021-25954: Improper Access Control in “Dolibarr”

In “Dolibarr” application, 2.8.1 to 13.0.4 don’t restrict or incorrectly restricts access to a resource from an unauthorized actor. A low privileged attacker can modify the Private Note which only an administrator has rights to do, the affected field is at “/adherents/note.php?id=1” endpoint.

MediumCVSS 4.3Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Dolibarr versions 2.8.1 through 13.0.4 allowed a low-privileged user to modify a Private Note field intended for administrators. The business impact is limited but real: trusted internal records can be changed without proper authority, undermining data integrity and audit confidence.

Executive priority

Treat this as a moderate-priority integrity issue. It is not described as data theft or system takeover, but affected Dolibarr systems should be updated because unauthorized record modification can affect trust, compliance, and operational decisions.

Technical view

CVE-2021-25954 is an improper access control issue in Dolibarr at /adherents/note.php?id=1. An authenticated low-privileged attacker can modify the Private Note field despite administrator-only expectations. CVSS 3.1 is 4.3, reflecting network access, low complexity, low privileges, no user interaction, and low integrity impact.

Likely exposure

Exposure is most likely where affected Dolibarr deployments allow non-admin authenticated users to access member/adherent note functionality. Internet exposure increases reach, but exploitation still requires a valid low-privileged account.

Exploitation context

The provided sources do not show CISA KEV listing or confirmed active exploitation. The issue is low-complexity after authentication, but the documented impact is limited to unauthorized modification of an administrator-only note field.

Researcher notes

Evidence is clear for improper access control and the affected endpoint, but the provided bundle does not name a specific fixed release. Avoid assuming broader Dolibarr modules are affected without validating vendor commits, release notes, or local code paths.

Mitigation direction

  • Inventory Dolibarr deployments and identify versions 2.8.1 through 13.0.4.
  • Apply vendor guidance or a Dolibarr release containing the referenced access-control fix.
  • Restrict low-privileged access to adherent note functionality until patched.
  • Review role permissions for member or adherent management features.
  • Audit Private Note changes for unexpected non-admin modifications.

Validation and detection

  • Confirm the running Dolibarr version against the affected range.
  • Verify non-admin users cannot modify Private Notes in staging.
  • Review access controls around /adherents/note.php.
  • Check audit data for Private Note edits by low-privileged users.
  • Confirm remediation against the referenced Dolibarr commit or vendor release notes.
Prepared
Confidence
high
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-284: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2021-25954 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.3Medium
CVSS 3.1 vector shape for CVE-2021-25954Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Dolibarrdolibarr2.8.1, unspecifiedListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-284 · source CWE mapping

Improper Access Control

Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.