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Vulnerability details: VCID-tzjk-x116-ayge
Vulnerability ID VCID-tzjk-x116-ayge
Aliases CVE-2026-33158
GHSA-3pvf-vxrv-hh9c
Summary Craft CMS: Low-privilege users could read private asset contents when editing an asset (IDOR) ### Summary A low-privileged authenticated user can read private asset content by calling `assets/edit-image` with an arbitrary `assetId` that they are not authorized to view. The endpoint returns image bytes (or a preview redirect) without enforcing a per-asset view authorization check, leading to potential unauthorized disclosure of private files. ### Details Root cause: - A user-controlled object reference (`assetId`) is used to load and return sensitive content. - The action does not verify whether the current user is authorized to view that asset. - This creates an authenticated IDOR / authorization bypass. ### Impact - Craft installations where private/non-public assets exist and low-privileged users can authenticate. ## Resources https://github.com/craftcms/cms/commit/7290d91639e
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-639 Authorization Bypass Through User-Controlled Key
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00016 https://api.first.org/data/v1/epss?cve=CVE-2026-33158
cvssv4 4.9 https://github.com/craftcms/cms
generic_textual MODERATE https://github.com/craftcms/cms
cvssv4 4.9 https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860
generic_textual MODERATE https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860
ssvc Track https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860
cvssv4 4.9 https://github.com/craftcms/cms/releases/tag/4.17.8
generic_textual MODERATE https://github.com/craftcms/cms/releases/tag/4.17.8
ssvc Track https://github.com/craftcms/cms/releases/tag/4.17.8
cvssv4 4.9 https://github.com/craftcms/cms/releases/tag/5.9.14
generic_textual MODERATE https://github.com/craftcms/cms/releases/tag/5.9.14
ssvc Track https://github.com/craftcms/cms/releases/tag/5.9.14
cvssv4 4.9 https://github.com/craftcms/cms/security/advisories/GHSA-3pvf-vxrv-hh9c
generic_textual MODERATE https://github.com/craftcms/cms/security/advisories/GHSA-3pvf-vxrv-hh9c
ssvc Track https://github.com/craftcms/cms/security/advisories/GHSA-3pvf-vxrv-hh9c
cvssv4 4.9 https://nvd.nist.gov/vuln/detail/CVE-2026-33158
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2026-33158
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-33158
https://github.com/craftcms/cms
https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860
https://github.com/craftcms/cms/releases/tag/4.17.8
https://github.com/craftcms/cms/releases/tag/5.9.14
https://github.com/craftcms/cms/security/advisories/GHSA-3pvf-vxrv-hh9c
https://nvd.nist.gov/vuln/detail/CVE-2026-33158
GHSA-3pvf-vxrv-hh9c https://github.com/advisories/GHSA-3pvf-vxrv-hh9c
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U Found at https://github.com/craftcms/cms
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U Found at https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-24T20:24:35Z/ Found at https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U Found at https://github.com/craftcms/cms/releases/tag/4.17.8
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-24T20:24:35Z/ Found at https://github.com/craftcms/cms/releases/tag/4.17.8
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U Found at https://github.com/craftcms/cms/releases/tag/5.9.14
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-24T20:24:35Z/ Found at https://github.com/craftcms/cms/releases/tag/5.9.14
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U Found at https://github.com/craftcms/cms/security/advisories/GHSA-3pvf-vxrv-hh9c
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-24T20:24:35Z/ Found at https://github.com/craftcms/cms/security/advisories/GHSA-3pvf-vxrv-hh9c
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U Found at https://nvd.nist.gov/vuln/detail/CVE-2026-33158
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Exploit Prediction Scoring System (EPSS)
Percentile 0.0389
EPSS Score 0.00016
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:58:42.998180+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-3pvf-vxrv-hh9c/GHSA-3pvf-vxrv-hh9c.json 38.6.0