CVE-2026-48147: medium-severity vulnerability in budibase
Budibase: Unanchored Regex in `matchers.ts` Allows CSRF Bypass via Query String Injection in Budibase Worker
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.1%
Budibase is an open-source low-code platform. Prior to 3.35.4, the buildMatcherRegex() / matches() functions in packages/backend-core/src/middleware/matchers.ts route patterns are compiled into unanchored regular expressions and tested against ctx.request.url, which includes the full query string. The CSRF middleware in the Budibase Worker uses this matching system to decide whether to skip CSRF token validation. An unauthenticated attacker can forge state-changing cross-origin requests against any Worker API endpoint by injecting a public route pattern into the query string, causing the CSRF middleware to skip token validation entirely. This allows actions such as sending admin invites, modifying global configuration, and managing users without a valid CSRF token. This vulnerability is fixed in 3.35.4.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Affected products
Budibase · budibaseRelated CVEs — budibase
In the same product, most dangerous first.
CVE-2026-31816CRITICALBudibase Universal Auth Bypass via Webhook Query Param InjectionEPSS 16.7%CVE-2026-35216CRITICALBudibase: Unauthenticated Remote Code Execution via Webhook Trigger and Bash Automation StepEPSS 10.9%CVE-2023-29010MEDIUMBudiBase Server-Side Request Forgery vulnerabilityEPSS 0.6%CVE-2026-25040MEDIUMBudibase Vulnerable to Privilege Escalation via API Abuse – Creator Can Invite Users with Admin/Any RoleEPSS 0.6%CVE-2026-73300CRITICALBudibase: SQL Injection via `multipleStatements: true`EPSS 0.6%CVE-2026-35214HIGHBudibase: Path traversal in plugin file upload enables arbitrary directory deletion and file writeEPSS 0.6%