Security readout for executives and security teams
Plain-English summary
Budibase versions up to 3.26.3 allow a lower-privileged Creator user to bypass UI limits and invite users with higher roles, including Admin. This can let an insider or compromised Creator account take over a workspace or organization. Sources state no fixed version was available at publication.
Executive priority
Prioritize if Budibase manages sensitive internal tools or many users have Creator access. The immediate business risk is unauthorized administrative control after a Creator account is misused or compromised. Treat as a governance and access-control issue requiring near-term review.
Technical view
CVE-2026-25040 is an improper authorization issue (CWE-863) in Budibase. A Creator-level account can abuse invite-related API behavior to assign arbitrary roles and groups. The CVSS 4.0 score is 5.7, with low attack complexity and required low privileges. Impact is primarily integrity within the Budibase organization.
Likely exposure
Organizations running Budibase 3.26.3 or earlier are exposed if untrusted, numerous, or compromised Creator accounts exist. Internet exposure increases account-compromise risk, but exploitation still requires valid Creator-level privileges according to the CVE description.
Exploitation context
The issue is not listed in CISA KEV, and the provided sources do not confirm active exploitation. A public proof-of-concept reference is included in the CVE materials, so defenders should assume the behavior is reproducible without treating it as confirmed in-the-wild abuse.
Researcher notes
Evidence is limited to the CVE record and referenced advisory materials. The reported weakness is API authorization bypass versus UI permission enforcement. Do not infer affected hosted tiers, deployment models, or a fixed version beyond what the sources state.
Mitigation direction
- Check Budibase’s advisory for newly released fixed versions or official mitigations.
- Limit Creator role membership to trusted users until patched.
- Review and tighten who can invite users or manage groups.
- Monitor for unexpected user invitations, role changes, and group assignments.
- Consider compensating controls around SSO, MFA, and account lifecycle governance.
Validation and detection
- Inventory Budibase deployments and record exact versions.
- Identify workspaces running Budibase 3.26.3 or earlier.
- Audit all Creator accounts for business need and ownership.
- Review recent invitation, role, and group assignment activity.
- Confirm whether vendor guidance or a fixed release is now available.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-863: 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.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-25040 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.7 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
5.7MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/Budibase/budibase/security/advisories/GHSA-4wfw-r86x-qxrmCVE reference · x_refsource_CONFIRM
- https://drive.google.com/file/d/1Dtn1WLJILRYUeoMjEbUfCbqQ3g2AW2Qz/view?usp=sharingCVE reference · x_refsource_MISC
- https://github.com/user-attachments/files/22066135/budibase-privileged-esc-poc.txtCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Incorrect Authorization
Incorrect Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.