Is CVE-2026-92589 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-92589 being exploited in the wild.

How severe is CVE-2026-92589?

Medium severity, with a CVSS score of 4.3, published 16 September 2026.

Which products and versions are affected?

Craft CMS 5.0.0 through 5.10.12.

Is there a fix for CVE-2026-92589?

A patch was published on 2026-09-16: Fixed in version 5.10.13 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-92589 attacked?

It is attacked over the network.

Am I affected by CVE-2026-92589?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-92589: Craft CMS broken access control in nested-elements reorder

CVE-2026-92589 · Severity: medium · CVSS 4.3 · Published 2026-09-16

Craft CMS is a content management system used to build websites and manage digital content. A flaw in its access control system allows users with read-only permission on another author's content to reorder Matrix or Address nested elements within that content—a write operation they should not be able to perform. An attacker needs to view the content once, which automatically grants the system permission to reorder nested elements, enabling unauthorized data modification.

Quick answers

Is CVE-2026-92589 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-92589 being exploited in the wild.
How severe is CVE-2026-92589?: Medium severity, with a CVSS score of 4.3, published 16 September 2026.
Which products and versions are affected?: Craft CMS 5.0.0 through 5.10.12.
Is there a fix for CVE-2026-92589?: A patch was published on 2026-09-16: Fixed in version 5.10.13 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-92589 attacked?: It is attacked over the network.
Am I affected by CVE-2026-92589?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A missing authorization check in Craft CMS's actions/nested-elements/reorder endpoint allows authenticated users with limited permissions to modify nested content they should not be able to edit. When a user with viewPeerEntries (view other authors' entries) but without savePeerEntries (edit other authors' entries) opens another author's entry in read-only mode, Craft grants a manageNestedElements session flag for Matrix/Address fields. The reorder endpoint trusts this flag alone without rechecking the caller's actual save permission, unlike the delete endpoint which performs proper authorization. An attacker can then POST to the reorder endpoint using parameters visible in the read-only page source to change the sort order of nested elements. Craft CMS 5.10.13 and later include the fix.

Affected products

Craft CMS 5.0.0 through 5.10.12

Timeline

2026-09-16: disclosed
2026-09-16: patched: Fixed in version 5.10.13

References

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