Skip to main content

Payload CMS EUVDEUVD-2026-93503

| CVE-2026-105859 CRITICAL
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-10-06 GitHub_M GHSA-f7hx-52q9-hcrf
9.8
CVSS 3.1 · Vendor: GitHub_M
Share

Severity by source

Vendor (GitHub_M) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
4.3 MEDIUM

Network endpoint, low complexity; CWE-639 authorization bypass implies at least a low-privilege account (PR:L); impact limited to unauthorized reordering, so I:L and no C/A impact.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.0 AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
POC Analysis Generated
Oct 06, 2026 - 19:26 vuln.today
Patch available
Oct 06, 2026 - 18:19 EUVD
Analysis Generated
Oct 06, 2026 - 17:05 vuln.today
CVE Published
Oct 06, 2026 - 16:31 cve.org
CRITICAL 9.8

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 2 npm packages depend on payload (2 direct, 0 indirect)

Ecosystem-wide dependent count for version 4.0.0-canary.0.

DescriptionCVE.org

Payload is a free and open source headless content management system. In versions before 3.90.0 and canary versions before 4.0.0-canary.34, an attacker can submit a request to a specific update endpoint that modifies collection documents without enforcing collection or field-level access control when orderable is enabled on a collection or join field. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

AnalysisAI

Payload CMS releases before 3.90.0 (and canary builds before 4.0.0-canary.34) expose an orderable reorder endpoint that writes document order changes without evaluating collection or field-level update access control, allowing a caller who can reach that endpoint to alter the sort position of documents in any collection or join field that has the orderable option enabled. The vendor's own fix commit confirms the pre-patch endpoint accepted arbitrary orderableFieldName values and performed the underlying update with access checks bypassed (overrideAccess true), and the post-fix code now rejects unconfigured fields with HTTP 400 and re-runs executeAccess per document, so exploitation depends on the orderable feature being explicitly configured and the achievable impact is confined to the ordering field rather than arbitrary document content. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts

No credit card · 7-day full trial

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Exploit
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation Exploitation requires the `orderable` option to be enabled on a target collection or on a join field - this is the concrete, product-specific precondition; the post-fix code even rejects requests for fields 'not configured for ordering' with HTTP 400. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The input assigns CVSS 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), but the source-code evidence contradicts the triple-High impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: upgrade to Payload 3.90.0 (or 4.0.0-canary.34 for canary users), which validates that orderableFieldName is actually configured for ordering, re-evaluates collection.access.update for every document being moved, and applies updates with overrideAccess: false; see https://github.com/payloadcms/payload/security/advisories/GHSA-f7hx-52q9-hcrf and https://github.com/payloadcms/payload/releases/tag/v3.90.0, with the fixing change at https://github.com/payloadcms/payload/commit/36fa9af73dd04fa59f4b4a06d11454538c4c1409. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory every Payload CMS deployment and record the exact version, flagging anything below 3.90.0 (or below 4.0.0-canary.34 on canary builds); determine whether the orderable option is enabled on any collection or join field, since the flaw is only reachable where it is configured, and where it is enabled restrict access to the reorder endpoint at the reverse proxy or WAF and review recent access logs for anomalous reorder requests. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2022-27952 CRITICAL POC
9.8 Apr 12

An arbitrary file upload vulnerability in the file upload module of PayloadCMS v0.15.0 allows attackers to execute arbit

CVE-2026-105844 CRITICAL POC
9.3 Oct 06

Prototype pollution in Payload CMS's @payloadcms/plugin-import-export module lets an unauthenticated remote attacker sub

CVE-2026-105854 HIGH POC
8.7 Oct 06

Malformed multipart request bodies sent to Payload CMS versions 3.0.0 through 3.89.x and 4.0.0-canary.0 through 4.0.0-ca

CVE-2026-105855 HIGH POC
7.6 Oct 06

Authenticated users who can update an auth collection document in Payload CMS can change the password field on that docu

CVE-2026-105857 CRITICAL
10.0 Oct 06

Unauthorized read access to stored form submissions and form email configuration in Payload CMS deployments running the

CVE-2026-25544 CRITICAL POC
9.8 Feb 06

Payload CMS prior to 3.73.0 has a SQL injection vulnerability when querying structured data, enabling database compromis

CVE-2026-105845 CRITICAL POC
9.8 Oct 06

SQL injection in Payload CMS 3.0.0 through before 3.88.0 (and 4.0.0-canary builds before 4.0.0-canary.27) allows remote

CVE-2026-105804 MEDIUM POC
5.7 Oct 06

Payload CMS (npm package `payload`) versions 3.0.0 through 3.89.x and 4.0.0-canary builds before canary.34 hash account

CVE-2026-105851 CRITICAL POC
9.3 Oct 06

Field-level access control can be bypassed in Payload CMS's document duplicate operation, letting a caller with access t

CVE-2026-105863 CRITICAL
9.2 Oct 06

Authentication claim injection in Payload CMS affects versions after 3.0.0 and before 3.90.0, where a collection field c

CVE-2026-105850 HIGH POC
8.8 Oct 06

Duplicate order processing in @payloadcms/plugin-ecommerce allows remote, unauthenticated attackers to have a single Str

CVE-2026-34748 HIGH
8.7 Apr 01

Stored Cross-Site Scripting (XSS) in Payload CMS versions prior to 3.78.0 allows authenticated users with write permissi

Share

EUVD-2026-93503 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy