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CVE-2026-92589— Craft CMS 5.0.0 before 5.10.13 Broken Access Control via nested-elements/reorder

Quick assessment

Affected
craftcms cms
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Craft CMS 5.0.0 through 5.10.12 (fixed in 5.10.13) contains a broken access control flaw in the nested-elements reorder endpoint. When an authenticated control panel user with viewEntries and viewPeerEntries (but without savePeerEntries) opens another author's

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-92589

Vulnerability Information
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Vulnerability Title
Craft CMS 5.0.0 before 5.10.13 Broken Access Control via nested-elements/reorder
Source: CVE Program / CVE List V5
Vulnerability Description
Craft CMS 5.0.0 through 5.10.12 (fixed in 5.10.13) contains a broken access control flaw in the nested-elements reorder endpoint. When an authenticated control panel user with viewEntries and viewPeerEntries (but without savePeerEntries) opens another author's entry in read-only mode, Craft unconditionally grants that session a `manageNestedElements::<ownerId>::field:<handle>` authorization flag for the entry's Matrix/Address fields. Unlike the corresponding delete endpoint, actions/nested-elements/reorder trusts this session flag alone and never rechecks the caller's save permission for the owner element. As a result, a view-only user can POST to actions/nested-elements/reorder using the ownerElementType, ownerId, ownerSiteId, attribute, elementIds, and offset parameters present in the read-only page source and rewrite the sort order of Matrix blocks or Addresses belonging to content they are explicitly denied save access to.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
craftcms cms 5.0.0 ~ 5.10.13 -

II. Public POCs for CVE-2026-92589

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III. Intelligence Information for CVE-2026-92589

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Other References for CVE-2026-92589 (2)

Same Patch Batch · craftcms · 2026-09-16 · 6 CVEs total

CVE-2026-92592 8.8 HIGH Craft CMS before 4.18.6 Remote Code Execution via signed cookie
CVE-2026-92593 8.8 HIGH Craft CMS 5.10.0 before 5.10.13 Authenticated Remote Code Execution
CVE-2026-92594 7.5 HIGH Craft CMS before 5.11.0 Unauthenticated PII Disclosure via GraphQL
CVE-2026-92591 5.9 MEDIUM Craft CMS 5.0.0 before 5.10.13 Environment Secret Exposure via Installer
CVE-2026-92590 5.4 MEDIUM Craft CMS 5.7.0 before 5.10.13 Stored XSS via Generated Fields

IV. Related Vulnerabilities

Same product: cms
Same vendor: craftcms
Same weakness: CWE-862

V. Comments for CVE-2026-92589

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