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.
CVE-2026-92589
Score 4.3 from GitHub Security Advisory published 2026-09-17. a secondary CVSS source baseline 4.3; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(high)
- EG Risk
- 19(Track)EG Risk 19/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity43% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 16%
- KEV
- Not listed
Published
September 16, 2026
Last Modified
September 22, 2026
Advisory Details (2)
Auto-updated Sep 16, 2026Craft CMS 5.0.0 before 5.10.13 Broken Access Control via nested-elements/reorder | Advisories | VulnCheck
https://www.vulncheck.com/advisories/craft-cms-5.0.0-before-5.10.13-broken-access-control-via-nested-elements-reorderBroken Access Control: View-Only User Can Reorder Another Author's Matrix/Address Nested Elements · Advisory · craftcms/cms · GitHub
https://github.com/craftcms/cms/security/advisories/GHSA-6fp2-8j9w-7mj8Vendor Advisories for CVE-2026-92589(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 22× in last 7d / 28× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-24 19:10 UTCEG score recompute
- 2026-09-24 19:10 UTCGHSA enrichment
- 2026-09-24 14:04 UTCEPSS rescore
- 2026-09-23 19:52 UTCEG score recompute
- 2026-09-23 19:52 UTCGHSA enrichment
- 2026-09-23 17:54 UTCEPSS rescore
- 2026-09-22 20:34 UTCGHSA enrichment
- 2026-09-22 18:40 UTCEG score recompute
- 2026-09-22 18:40 UTCGHSA enrichment
- 2026-09-22 16:01 UTCEPSS rescore
- 2026-09-21 21:09 UTCEPSS rescore
- 2026-09-21 19:21 UTCEG score recompute
- 2026-09-21 19:21 UTCGHSA enrichment
- 2026-09-20 20:16 UTCEPSS rescore
- 2026-09-20 20:03 UTCGHSA enrichment
- 2026-09-19 20:45 UTCEG score recompute
- 2026-09-19 20:45 UTCGHSA enrichment
- 2026-09-18 21:27 UTCEG score recompute
- 2026-09-18 21:27 UTCGHSA enrichment
- 2026-09-18 20:35 UTCEG score recompute
- 2026-09-18 20:35 UTCGHSA enrichment
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-17 21:44 UTCEG score recompute
- 2026-09-17 21:44 UTCGHSA enrichment
- 2026-09-17 19:32 UTCEPSS rescore
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- 2026-09-16 22:26 UTCEG score recompute
- 2026-09-16 21:54 UTCEG score recompute
- 2026-09-16 21:54 UTCMITRE cvelistV5first tracked
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Frequently asked(5)
What is CVE-2026-92589?
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Is CVE-2026-92589 actively exploited?
What is the CVSS score of CVE-2026-92589?
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Dependency Blast Radius
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