CVE Explorer

CVE-2026-42844

Grav is a file-based Web platform. In Grav 2.0.0-beta.2, a low-privileged authenticated API user with api.media.write can abuse /api/v1/blueprint-upload to write an arbitrary YAML file into user/accounts/, then log in as the newly created account with api.super privileges. This results in full administrative compromise of the Grav API. This vulnerability is fixed in API 1.0.0-beta.17.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9bc824cca8ab28717704d56ad993baae1beb532d90c0e95704a1b599aed226ba

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-269","description":"CWE-269: Improper Privilege Management","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:82170c837d382e8625350bc216520cdfaaea688460ea5fdc6ccccf76d504ba3a · sha256:c8b030392c326296… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-434","description":"CWE-434: Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:82170c837d382e8625350bc216520cdfaaea688460ea5fdc6ccccf76d504ba3a · sha256:c8b030392c326296… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"product":"grav","vendor":"getgrav","versions":[{"status":"affected","version":"2.0.0-beta.2"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:82170c837d382e8625350bc216520cdfaaea688460ea5fdc6ccccf76d504ba3a · sha256:c8b030392c326296… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:82170c837d382e8625350bc216520cdfaaea688460ea5fdc6ccccf76d504ba3a · sha256:c8b030392c326296… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions

{"cweId":"CWE-269","description":"CWE-269: Improper Privilege Management","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:82170c837d382e8625350bc216520cdfaaea688460ea5fdc6ccccf76d504ba3a · sha256:c8b030392c326296… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-434","description":"CWE-434: Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:82170c837d382e8625350bc216520cdfaaea688460ea5fdc6ccccf76d504ba3a · sha256:c8b030392c326296… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/getgrav/grav/security/advisories/GHSA-6xx2-m8wv-756h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/getgrav/grav/security/advisories/GHSA-6xx2-m8wv-756h"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:82170c837d382e8625350bc216520cdfaaea688460ea5fdc6ccccf76d504ba3a · sha256:c8b030392c326296… · /containers/cna/references/0

{"tags":["exploit"],"url":"https://github.com/getgrav/grav/security/advisories/GHSA-6xx2-m8wv-756h"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:82170c837d382e8625350bc216520cdfaaea688460ea5fdc6ccccf76d504ba3a · sha256:c8b030392c326296… · /containers/adp/0/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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