CVE-2026-55792
- Source
- https://cve.org/CVERecord?id=CVE-2026-55792
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55792.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-55792
- Aliases
- Published
- 2026-07-01T23:20:28Z
- Modified
- 2026-10-28T02:30:49Z
- Severity
-
- 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Craft CMS: Sensitive File Disclosure / Server-Side File Read
- Details
-
Craft CMS is a content management system (CMS). In versions starting from 4.0.0-RC1 and prior to 4.18.0, and 5.0.0-RC1 and above, prior to 5.10.0, the dataUrl() Twig function is included in Craft’s Twig sandbox allowlist, allowing any control panel user granted the utility:system-messages permission to embed a file-reading payload into system email templates. When those emails are sent, the server reads the target file and returns its contents as a base64-encoded data URL embedded in the email body. The .env file, which typically contains the database password, CRAFT_SECURITY_KEY, and third-party API keys, passes all of Craft’s existing dataUrl() protection checks and is fully exfiltrated. Obtaining CRAFT_SECURITY_KEY enables an attacker to forge session tokens and escalate to full admin account takeover. This issue has been fixed in versions 4.18.0 and 5.10.0.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-200" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55792.json" }- References
Affected packages
Git / github.com/craftcms/cms
Affected ranges
- Type
- GIT
- Repo
- https://github.com/craftcms/cms
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "4.0.0-RC1" }, { "fixed": "4.18.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "introduced": "5.0.0-RC1" }, { "fixed": "5.10.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" } ] }