Is craftcms/cms 5.9 vulnerable?

Composer · 24 releases from 5.9.0 to 5.9.23 · latest craftcms/cms is 5.11.5.1 · checked 1 Nov 2026

Yes: 15 known advisories

Yes. craftcms/cms 5.9.23, the last 5.9 release, is affected by 15 known security advisories (2 critical, 4 high, 8 medium, 1 low), including CVE-2026-72780, CVE-2026-55791, CVE-2026-72786. 32 more affect earlier 5.9.x releases. Upgrade to 5.10.8 or later to fix all of them.

Upgrade with:composer require craftcms/cms:^5.10.8

Is your project affected?

Private repo? Upload its lockfile instead, or connect GitHub to check every repo.

Advisories affecting craftcms/cms 5.9.23

  • CriticalCVE-2026-72780GHSA-wg23-69c2-gjc87 Aug 2026

    Craft CMS: Passkey login accepts replayed WebAuthn assertions

    Affected
    >=5.0.0-RC1 <5.10.5
    Fixed in
    5.10.5
  • MediumCVE-2026-72779GHSA-957r-qf9p-67xw6 Aug 2026

    Craft CMS: Arbitrary file read via SplFileObject in non-sandboxed template contexts

    Affected
    >=5.0.0-RC1 <5.10.6 · >=4.0.0-RC1 <4.18.2
    Fixed in
    4.18.2, 5.10.6
  • MediumCVE-2026-72782GHSA-596p-6jv8-775v6 Aug 2026

    Craft CMS: Authenticated leak of secret environment variables

    Affected
    >=5.0.0-RC1 <5.10.6 · >=4.0.0-RC1 <4.18.2
    Fixed in
    4.18.2, 5.10.6
  • MediumCVE-2026-72785GHSA-xxpx-f366-4xpq6 Aug 2026

    Craft CMS: Authorization bypass: view-only Categories user can modify category structure via structures/move-element

    Affected
    >=5.0.0-RC1 <5.10.6
    Fixed in
    5.10.6
  • MediumCVE-2026-14794GHSA-rvmm-v933-jgxq6 Aug 2026

    Craft CMS: Missing authorization check allows non-admin control panel users access to user registration metrics

    Affected
    >=4.0.0-RC1 <4.18.1 · >=5.0.0-RC1 <5.10.3
    Fixed in
    4.18.1, 5.10.3
  • LowCVE-2026-72783GHSA-7hxc-f267-h5q76 Aug 2026

    Craft CMS: Incorrect path validation could potentially lead to path traversal

    Affected
    >=5.0.0-RC1 <5.10.6 · >=4.0.0-RC1 <4.18.2
    Fixed in
    4.18.2, 5.10.6
  • MediumCVE-2026-72787GHSA-2rp4-x2j7-qmcc6 Aug 2026

    Craft CMS: Stored XSS in the control panel via unescaped draft name

    Affected
    >=5.0.0-RC1 <5.10.8
    Fixed in
    5.10.8
  • HighCVE-2026-72786GHSA-p8x7-9vfw-p7vc6 Aug 2026

    Craft CMS: Arbitrary user password reset leading to administrator account takeover

    Affected
    >=5.0.0-RC1 <5.10.8
    Fixed in
    5.10.8
  • HighCVE-2026-72781GHSA-f5wm-88jv-g5hx6 Aug 2026

    Craft CMS: Authenticated RCE through Twig sandbox escape

    Affected
    >=5.0.0-RC1 <5.10.7 · >=4.0.0-RC1 <4.18.3
    Fixed in
    4.18.3, 5.10.7
  • MediumCVE-2026-14793GHSA-9p7c-v5x3-rfx86 Aug 2026

    Craft CMS: Missing authorization check allows non-admin control panel users to reorder Global Sets

    Affected
    >=4.0.0-RC1 <4.18.1 · >=5.0.0-RC1 <5.10.3
    Fixed in
    4.18.1, 5.10.3
  • HighCVE-2026-72778GHSA-265m-7826-wjqm6 Aug 2026

    Craft CMS: Authenticated RCE via `condition.config` JSON cleanse bypass

    Affected
    >=5.0.0-RC1 <5.10.6 · >=4.0.0-RC1 <4.18.2
    Fixed in
    4.18.2, 5.10.6
  • HighCVE-2026-55794GHSA-f74w-488g-8x5r6 Jul 2026

    Craft CMS: Potential authenticated Remote Code Execution via referrer redirect

    Affected
    >=5.9.0 <5.10.0
    Fixed in
    5.10.0
  • MediumCVE-2026-55793GHSA-xrqc-p465-2xvg6 Jul 2026

    Craft CMS: Stored XSS via Structure entry title in table view

    Affected
    >=5.0.0-RC1 <5.9.53
    Fixed in
    5.9.53
  • MediumCVE-2026-55792GHSA-287w-mxq6-x2cp6 Jul 2026

    Craft CMS: Sensitive File Disclosure / Server-Side File Read

    Affected
    >=4.0.0-RC1 <4.18.0 · >=5.0.0-RC1 <5.10.0
    Fixed in
    4.18.0, 5.10.0
  • CriticalCVE-2026-55791GHSA-c55v-343g-5xff19 Jun 2026

    Craft CMS: Blind SSRF and Arbitrary JavaScript Injection via Host Header Poisoning in actionResourceJs

    Affected
    >=5.0.0-RC1 <5.10 · >=4.0.0-RC1 <4.18
    Fixed in
    4.18, 5.10

Fixed within 5.9.x, affecting earlier releases

  • HighCVE-2026-56382GHSA-86vw-x4ww-x4679 Jul 2026

    Craft CMS: RCE via missing cleanseConfig in FieldsController::actionRenderCardPreview

    Affected
    >=5.5.0 <5.9.14
    Fixed in
    5.9.14
  • LowCVE-2026-56394GHSA-c43v-4cr8-6mvp9 Jul 2026

    Craft CMS has authenticated path traversal in `assets/icon`, allowing local `.svg` file read

    Affected
    >=4.0.0-RC1 <4.17.7 · >=5.0.0-RC1 <5.9.13
    Fixed in
    4.17.7, 5.9.13
  • HighCVE-2026-55790GHSA-24x4-j6x9-rfw56 Jul 2026

    Craft CMS: DOM XSS via GitHub issue title in CraftSupport widget

    Affected
    >=5.0.0-RC1 <5.9.23 · >=4.0.0-RC1 <4.17.16
    Fixed in
    4.17.16, 5.9.23
  • MediumCVE-2026-56384GHSA-x76w-8c62-48mg6 Jul 2026

    Craft CMS: Authenticated "assets/preview-thumb" discloses signed fallback transform preview link to CP users without asset-view permission

    Affected
    >=4.0.0-RC1 <4.17.8 · >=5.0.0-RC1 <5.9.14
    Fixed in
    4.17.8, 5.9.14
  • HighCVE-2026-50282GHSA-3w32-23wj-rxg32 Jul 2026

    Craft CMS Vulnerable to Unauthorized Deletion of Destination Folders During Forced Moves

    Affected
    >=5.0.0-RC1 <5.9.21 · >=4.0.0-RC1 <4.17.14
    Fixed in
    4.17.14, 5.9.21
  • HighCVE-2026-50281GHSA-x5m4-g2cq-52pq2 Jul 2026

    Craft CMS's mass assignment via id in newAttributes during bulk duplicate overwrites existing elements

    Affected
    >=5.7.0 <5.9.21
    Fixed in
    5.9.21
  • HighCVE-2026-50284GHSA-7h62-6v23-v8fm2 Jul 2026

    Craft CMS: Missing peer-permission check in `AssetsController::actionDeleteFolder` allows deletion of other users' assets

    Affected
    >=5.0.0-RC1 <5.9.22 · >=4.0.0-RC1 <4.17.15
    Fixed in
    4.17.15, 5.9.22
  • MediumCVE-2026-50283GHSA-qh45-9g5p-m2v42 Jul 2026

    Craft CMS: Unauthorized Deletion of Source Assets During File Replacement

    Affected
    >=5.0.0-RC1 <5.9.21 · >=4.0.0-RC1 <4.17.14
    Fixed in
    4.17.14, 5.9.21
  • MediumCVE-2026-50280GHSA-43cq-c2gq-pfpw2 Jul 2026

    Craft CMS: Authorization bypass in `entries/move-to-section` via missing target-section save check

    Affected
    >=5.0.0-RC1 <5.9.21
    Fixed in
    5.9.21
  • HighCVE-2026-50279GHSA-qq2c-2q8j-jh272 Jul 2026

    Craft CMS: Authorship spoofing in `entries/save-entry` via pre-check/post-mutation authorization gap

    Affected
    >=5.0.0-RC1 <5.9.21
    Fixed in
    5.9.21
  • HighCVE-2026-44012GHSA-33m5-hqp9-97pw6 May 2026

    Craft CMS's Missing Volume Permission Check in AssetsController::actionShowInFolder Allows Information Disclosure

    Affected
    >=5.0.0-RC1 <5.9.18
    Fixed in
    5.9.18
  • HighCVE-2026-44011GHSA-qrgm-p9w5-rrfw6 May 2026

    Craft CMS has Potential Authenticated Remote Code Execution via Malicious Attached Behavior

    Affected
    >=4.0.0 <4.17.12 · >=5.0.0 <5.9.18
    Fixed in
    4.17.12, 5.9.18
  • HighCVE-2026-44010GHSA-gj2p-p9m4-c8gw6 May 2026

    Craft CMS's Missing Authorization in GraphQL Address Resolver Allows Cross-Scope PII Disclosure

    Affected
    >=5.0.0 <5.9.18 · >=4.0.0 <4.17.12
    Fixed in
    4.17.12, 5.9.18
  • MediumCVE-2026-41130GHSA-95wr-3f2v-v2wh14 Apr 2026

    Craft CMS has a host header injection leading to SSRF via resource-js endpoint

    Affected
    >=5.0.0-RC1 <5.9.15 · >=4.0.0-RC1 <4.17.9
    Fixed in
    4.17.9, 5.9.15
  • MediumCVE-2026-41129GHSA-3m9m-24vh-39wx14 Apr 2026

    Server-Side Request Forgery (SSRF) in Craft CMS with Asset Uploads Mutations

    Affected
    >=5.0.0-RC1 <5.9.15 · >=4.0.0-RC1 <4.17.9
    Fixed in
    4.17.9, 5.9.15
  • MediumCVE-2026-41128GHSA-jq2f-59pj-p3m314 Apr 2026

    Craft CMS has a Missing Authorization Check on User Group Removal via save-permissions Action

    Affected
    >=5.6.0 <5.9.15
    Fixed in
    5.9.15
  • LowCVE-2026-56385GHSA-44px-qjjc-xrhq26 Mar 2026

    Craft CMS: Authorized asset "preview file" requests bypass allows users without asset access to retrieve private preview metadata

    Affected
    >=5.0.0-RC1 <5.9.14 · >=4.0.0-RC1 <4.17.8
    Fixed in
    4.17.8, 5.9.14
  • MediumCVE-2026-33162GHSA-f582-6gf6-gx4g24 Mar 2026

    Craft CMS has an authorization bypass which allows any control panel user to move entries without permissions

    Affected
    >=5.3.0 <5.9.14
    Fixed in
    5.9.14
  • LowCVE-2026-33161GHSA-vgjg-248p-rfm224 Mar 2026

    Craft CMS' anonymous "assets/image-editor" calls return private asset editor metadata to unauthorized users

    Affected
    >=5.0.0-RC1 <5.9.14 · >=4.0.0-RC1 <4.17.8
    Fixed in
    4.17.8, 5.9.14
  • LowCVE-2026-33160GHSA-5pgf-h923-m95824 Mar 2026

    Craft CMS may expose private assets through anonymous "generate transform" calls via transform URL

    Affected
    >=5.0.0-RC1 <5.9.14 · >=4.0.0-RC1 <4.17.8
    Fixed in
    4.17.8, 5.9.14
  • MediumCVE-2026-33159GHSA-6mrr-q3pj-h53w24 Mar 2026

    Craft CMS: Unauthenticated Users Can Perform Restricted Project Config Sync Operations

    Affected
    >=5.0.0-RC1 <5.9.14 · >=4.0.0-RC1 <4.17.8
    Fixed in
    4.17.8, 5.9.14
  • MediumCVE-2026-33158GHSA-3pvf-vxrv-hh9c24 Mar 2026

    Craft CMS: Low-privilege users could read private asset contents when editing an asset (IDOR)

    Affected
    >=4.0.0-RC1 <4.17.8 · >=5.0.0-RC1 <5.9.14
    Fixed in
    4.17.8, 5.9.14
  • HighCVE-2026-33157GHSA-2fph-6v5w-89hh24 Mar 2026

    Craft CMS is Vulnerable to Authenticated Remote Code Execution via Malicious Attached Behavior

    Affected
    >=5.6.0 <5.9.13
    Fixed in
    5.9.13
  • MediumCVE-2026-33051GHSA-3x4w-mxpf-fhqq18 Mar 2026

    Craft CMS Vulnerable to Stored XSS in Revision Context Menu

    Affected
    >=5.9.0-beta.1 <5.9.11
    Fixed in
    5.9.11
  • HighCVE-2026-32267GHSA-cc7p-2j3x-x7xf16 Mar 2026

    Craft CMS Vulnerable to Privilege Escalation/Bypass through UsersController->actionImpersonateWithToken()

    Affected
    >=4.0.0-RC1 <4.17.6 · >=5.0.0-RC1 <5.9.12
    Fixed in
    4.17.6, 5.9.12
  • HighCVE-2026-32264GHSA-4484-8v2f-574816 Mar 2026

    Craft CMS vulnerable to behavior injection RCE ElementIndexesController and FieldsController

    Affected
    >=4.0.0-RC1 <4.17.5 · >=5.0.0-RC1 <5.9.11
    Fixed in
    4.17.5, 5.9.11
  • HighCVE-2026-32263GHSA-qx2q-q59v-wf3j16 Mar 2026

    Craft CMS vulnerable to behavior injection RCE via EntryTypesController

    Affected
    >=5.6.0 <5.9.11
    Fixed in
    5.9.11
  • MediumCVE-2026-32262GHSA-472v-j2g4-g9h216 Mar 2026

    Craft CMS has a Path Traversal Vulnerability in AssetsController

    Affected
    >=4.0.0-RC1 <4.17.5 · >=5.0.0-RC1 <5.9.11
    Fixed in
    4.17.5, 5.9.11
  • HighCVE-2026-31857GHSA-fp5j-j7j4-mcxc11 Mar 2026

    CraftCMS has an RCE vulnerability via relational conditionals in the control panel

    Affected
    >=5.0.0-RC1 <5.9.9 · >=4.0.0-beta.1 <4.17.4
    Fixed in
    4.17.4, 5.9.9
  • HighCVE-2026-31858GHSA-g7j6-fmwx-7vp811 Mar 2026

    CraftCMS's `ElementSearchController` Affected by Blind SQL Injection

    Affected
    >=5.0.0-RC1 <5.9.9
    Fixed in
    5.9.9
  • MediumCVE-2026-31859GHSA-fvwq-45qv-xvhv11 Mar 2026

    CraftCMS vulnerable to reflective XSS via incomplete return URL sanitization

    Affected
    >=4.15.3 <4.17.3 · >=5.7.5 <5.9.7
    Fixed in
    4.17.3, 5.9.7
  • LowCVE-2026-29113GHSA-vg3j-hpm9-8v5v10 Mar 2026

    Craft CMS has a potential information disclosure vulnerability in preview tokens

    Affected
    >=4.0.0-RC1 <4.17.3 · >=5.0.0-RC1 <5.9.7
    Fixed in
    4.17.3, 5.9.7

Which of your client projects are still on craftcms/cms 5.9?

NPMscan reads the lockfiles in every GitHub repo you pick, finds the exact craftcms/cms version each one installs, and checks it against these advisories. Each finding comes with the command that fixes it.

Other craftcms/cms versions

Advisory data from OSV.dev (opens OSV.dev in a new tab), which includes the GitHub Advisory Database. Release list from the Composer registry. Refreshed daily.