CVE-2026-33159 | Craft CMS up to 4.17.7/5.9.13 missing authentication

VDB-352826 · CVE-2026-33159 · GCVE-0-2026-33159 CRAFT CMS UP TO 4.17.7/5.9.13 MISSING AUTHENTICATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.0 $0-$5k 3.27+ Summaryinfo A vulnerability described as critical has been identified in Craft CMS up to 4.17.7/5.9.13. Affected by this issue is some unknown functionality. Such manipulation leads to missing authentication. This vulnerability is documented as CVE-2026-33159. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended. Detailsinfo A vulnerability was found in Craft CMS up to 4.17.7/5.9.13. It has been rated as critical. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a missing authentication vulnerability. Using CWE to declare the problem leads to CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. Impacted is confidentiality, integrity, and availability. CVE summarizes: Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, guest users can access Config Sync updater index, obtain signed data, and execute state-changing Config Sync actions (regenerate-yaml, apply-yaml-changes) without authentication. This issue has been patched in versions 4.17.8 and 5.9.14. The advisory is available at github.com. This vulnerability is handled as CVE-2026-33159 since 03/17/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. Upgrading to version 4.17.8 or 5.9.14 eliminates this vulnerability. Productinfo Type Content Management System Vendor Craft Name CMS Version 4.17.0 4.17.1 4.17.2 4.17.3 4.17.4 4.17.5 4.17.6 4.17.7 5.9.0 5.9.1 5.9.2 5.9.3 5.9.4 5.9.5 5.9.6 5.9.7 5.9.8 5.9.9 5.9.10 5.9.11 5.9.12 5.9.13 License free CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 7.3 VulDB Meta Temp Score: 7.0 VulDB Base Score: 7.3 VulDB Temp Score: 7.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Missing authentication CWE: CWE-306 / CWE-287 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: CMS 4.17.8/5.9.14 Timelineinfo 03/17/2026 CVE reserved 03/24/2026 +7 days Advisory disclosed 03/24/2026 +0 days VulDB entry created 03/24/2026 +0 days VulDB entry last update Sourcesinfo Advisory: github.com Status: Confirmed CVE: CVE-2026-33159 (🔒) GCVE (CVE): GCVE-0-2026-33159 GCVE (VulDB): GCVE-100-352826 Entryinfo Created: 03/24/2026 18:58 Changes: 03/24/2026 18:58 (67) Complete: 🔍 Cache ID: 99:DFB:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸