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Vulnerability details: VCID-fpke-p7sz-nfc9
Vulnerability ID VCID-fpke-p7sz-nfc9
Aliases CVE-2026-33160
GHSA-5pgf-h923-m958
Summary Craft CMS may expose private assets through anonymous "generate transform" calls via transform URL ### Summary An unauthenticated user can call `assets/generate-transform` with a private `assetId`, receive a valid transform URL, and fetch transformed image bytes. The endpoint is anonymous and does not enforce per-asset authorization before returning the transform URL. ### Details Root cause: - Anonymous endpoint accepts user-controlled asset reference. - It creates and returns a transform URL for that asset without checking access rights. - If the transform output is reachable, guest users can read content derived from private assets. Who is impacted: - Installations where private source assets can be transformed and transform URLs are reachable. Security consequence: - Anonymous users can obtain content derived from private assets without authentication. ### Resources https://github.com/craftcms/cms/commit/7290d91639e
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-639 Authorization Bypass Through User-Controlled Key
CWE-862 Missing Authorization
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-2026-33160
cvssv4 2.7 https://github.com/craftcms/cms
generic_textual LOW https://github.com/craftcms/cms
cvssv4 2.7 https://github.com/craftcms/cms/commit/7290d91639e
ssvc Track https://github.com/craftcms/cms/commit/7290d91639e
cvssv4 2.7 https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860
generic_textual LOW https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860
cvssv4 2.7 https://github.com/craftcms/cms/releases/tag/4.17.8
generic_textual LOW https://github.com/craftcms/cms/releases/tag/4.17.8
ssvc Track https://github.com/craftcms/cms/releases/tag/4.17.8
cvssv4 2.7 https://github.com/craftcms/cms/releases/tag/5.9.14
generic_textual LOW https://github.com/craftcms/cms/releases/tag/5.9.14
ssvc Track https://github.com/craftcms/cms/releases/tag/5.9.14
cvssv4 2.7 https://github.com/craftcms/cms/security/advisories/GHSA-5pgf-h923-m958
generic_textual LOW https://github.com/craftcms/cms/security/advisories/GHSA-5pgf-h923-m958
ssvc Track https://github.com/craftcms/cms/security/advisories/GHSA-5pgf-h923-m958
cvssv4 2.7 https://nvd.nist.gov/vuln/detail/CVE-2026-33160
generic_textual LOW https://nvd.nist.gov/vuln/detail/CVE-2026-33160
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-33160
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-5pgf-h923-m958
https://nvd.nist.gov/vuln/detail/CVE-2026-33160
7290d91639e https://github.com/craftcms/cms/commit/7290d91639e
GHSA-5pgf-h923-m958 https://github.com/advisories/GHSA-5pgf-h923-m958
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U Found at https://github.com/craftcms/cms/commit/7290d91639e
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:Y/T:P/P:M/B:A/M:M/D:T/2026-03-26T19:31:42Z/ Found at https://github.com/craftcms/cms/commit/7290d91639e
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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:Y/T:P/P:M/B:A/M:M/D:T/2026-03-26T19:31:42Z/ Found at https://github.com/craftcms/cms/releases/tag/4.17.8
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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:Y/T:P/P:M/B:A/M:M/D:T/2026-03-26T19:31:42Z/ Found at https://github.com/craftcms/cms/releases/tag/5.9.14
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U Found at https://github.com/craftcms/cms/security/advisories/GHSA-5pgf-h923-m958
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:Y/T:P/P:M/B:A/M:M/D:T/2026-03-26T19:31:42Z/ Found at https://github.com/craftcms/cms/security/advisories/GHSA-5pgf-h923-m958
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U Found at https://nvd.nist.gov/vuln/detail/CVE-2026-33160
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 0.03997
EPSS Score 0.00016
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:58:14.423815+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-5pgf-h923-m958/GHSA-5pgf-h923-m958.json 38.6.0