CVE-2026-92589
published 2026-09-16CVE-2026-92589: 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…
PriorityP424medium4.3CVSS 3.1
AVNACLPRLUINSUCNILAN
EPSS
0.26%
17.3th percentile
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::::field:` 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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| craftcms | cms | >= 5.0.0 < 5.10.13 | 5.10.13 |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
nvdv4.05.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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VulDB
craftcms Craft CMS up to 5.10.12 Nested Elements Reorder reorder offset privileges management
vuldb·2026-09-17·CVSS 4.3
CVE-2026-92589 [MEDIUM] craftcms Craft CMS up to 5.10.12 Nested Elements Reorder reorder offset privileges management
A vulnerability labeled as problematic has been found in craftcms Craft CMS up to 5.10.12. Affected is an unknown function of the file actions/nested-elements/reorder of the component Nested Elements Reorder. Such manipulation of the argument offset leads to improper privilege management.
This vulnerability is uniquely identified as CVE-2026-92589. The attack can be launched remotely. No exploit exists.
The affected component should be upgraded.
GHSA
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.
ghsa_unreviewed·2026-09-17
CVE-2026-92589 [MEDIUM] CWE-862 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.
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::::field:` 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 sour
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-09-16
Published