EUVD-2026-41409
GHSA-x5m4-g2cq-52pq
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V4 - API and Web Service Object attribute protection
|
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Jul 02, 2026
Cross-tenant entry takeover in Craft CMS 5.7.0 through 5.9.20 lets a low-privileged author overwrite another user's existing entry by smuggling a numeric id through the newAttributes parameter of the bulk-duplicate element action. Because the duplication routine re-applies attacker-controlled attributes after nulling the primary key, a UPDATE is executed against the victim's row instead of an INSERT, letting the attacker rewrite the victim's title, slug, authorId, postDate, and UID. No public exploit identified at time of analysis and it is not in CISA KEV; the flaw is fixed in version 5.9.21.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 2 packages in composer, euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Know when Cms gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Primary rating from Vendor (GitHub_M) · only source for this CVE.
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
1DescriptionCVE.org
Craft CMS is a content management system (CMS). Versions 5.7.0 and above, prior to 5.9.21 contain a mass-assignment flaw in the bulk-duplicate element action. An attacker who is only able to duplicate their own entires can submit an arbitrary id through the newAttributes request parameter. The duplication routine overrides its own id = null reset with that value and writes the attacker's attributes into the victim's existing entry row. ElementsController::beforeAction() pulls the request body into $this->_attributes and rejects requests that ship an id or canonicalId key at the top level, actionBulkDuplicate(), reads a separate newAttributes array and passes it straight through to the service layer. Elements::duplicateElement() clones the source element, sets id to null, and then hands the attacker's array to Craft::configure(), which overwrites the reset id with any numeric value inside $newAttributes. PHP Yii's saveElement() then performs an UPDATE against the row with that primary key instead of an INSERT. The attackers's title, slug, authorId, postDate, and UID land on the victim's entry. safeAttributes() on Entry includes id because the base element model exposes it, so the Collection::only() filter does not strip it. This issue has been fixed in version 5.9.21.
Executive ViewAI
Craft CMS versions 5.7.0 through 5.9.20 contain a privilege escalation vulnerability allowing content authors to modify entries owned by other users, including publication metadata and author attribution. Organizations using affected versions face erosion of content governance controls and potential compliance gaps around change authorization and audit trails.
Within 24 hours: Identify all Craft CMS deployments and confirm version. Within 7 days: Upgrade to Craft CMS 5.9.21 or later on all affected instances. Within 30 days: Audit entry change logs for unauthorized modifications and validate content integrity.
Apply vendor patch: Craft CMS 5.9.21 or later.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Cayin CMS suffers from an authenticated OS semi-blind command injection vulnerability using default credentials. Rated c
Multiple integer underflows in the icmLut_allocate function in International Color Consortium (ICC) Format library (iccl
phpKF CMS 3.00 Beta allows unauthenticated PHP file upload by disguising it as a PNG, then renaming it for execution. Po
Deserialization of Untrusted Data in the Sitecore.Security.AntiCSRF (aka anti CSRF) module in Sitecore CMS 7.0 to 7.2 an
Deserialization of Untrusted Data in the anti CSRF module in Sitecore through 9.1 allows an authenticated attacker to ex
Unauthenticated file disclosure in LavaLite CMS through 10.1.2 allows remote attackers to download private stored files
Authenticated remote code execution in Craft CMS versions 5.5.0 through 5.9.13 allows admin users to execute arbitrary P
SQL injection vulnerability in hava_post.php in Havalite CMS 1.1.0 and earlier allows remote attackers to execute arbitr
Unrestricted file upload vulnerability in hava_upload.php in Havalite CMS 1.1.0 and earlier allows remote attackers to e
Cross-site request forgery (CSRF) vulnerability in Ilch CMS allows remote attackers to hijack the authentication of admi
Multiple cross-site scripting (XSS) vulnerabilities in Havalite 1.0.4 and earlier allow remote attackers to inject arbit
A security vulnerability in juzaweb CMS (CVSS 6.3). Risk factors: public PoC available.
Exploit-DB