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CVE-2026-28781

Craft is a content management system (CMS). Prior to 4.17.0-beta.1 and 5.9.0-beta.1, the entry creation process allows for Mass Assignment of the authorId attribute. A user with "Create Entries" permission can inject the authorIds[] (or authorId) parameter into the POST request, which the backend processes without verifying if the current user is authorized to assign authorship to others. Normally, this field is not present in the request for users without the necessary permissions. By manually
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e7a7b01541c04b034be3586616178b7aa4585b6420b7c3c660905b62b8af904a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-915","description":"CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3a7cff81643f53104e93c0dfb0b7391ec16b248f359fdab5d41adf0cc056d12b · sha256:e09375e13492bd27… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3a7cff81643f53104e93c0dfb0b7391ec16b248f359fdab5d41adf0cc056d12b · sha256:e09375e13492bd27… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"cms","vendor":"craftcms","versions":[{"status":"affected","version":">= 5.0.0-RC1, < 5.9.0-beta.1"},{"status":"affected","version":">= 4.0.0-RC1, < 4.17.0-beta.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a7cff81643f53104e93c0dfb0b7391ec16b248f359fdab5d41adf0cc056d12b · sha256:e09375e13492bd27… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"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:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3a7cff81643f53104e93c0dfb0b7391ec16b248f359fdab5d41adf0cc056d12b · sha256:e09375e13492bd27… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-915","description":"CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3a7cff81643f53104e93c0dfb0b7391ec16b248f359fdab5d41adf0cc056d12b · sha256:e09375e13492bd27… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3a7cff81643f53104e93c0dfb0b7391ec16b248f359fdab5d41adf0cc056d12b · sha256:e09375e13492bd27… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/craftcms/cms/commit/830b403870cd784b47ae42a3f5a16e7ac2d7f5a8","tags":["x_refsource_MISC"],"url":"https://github.com/craftcms/cms/commit/830b403870cd784b47ae42a3f5a16e7ac2d7f5a8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a7cff81643f53104e93c0dfb0b7391ec16b248f359fdab5d41adf0cc056d12b · sha256:e09375e13492bd27… · /containers/cna/references/1
{"name":"https://github.com/craftcms/cms/commit/c6dcbdffaf6ab3ffe77d317336684d83699f4542","tags":["x_refsource_MISC"],"url":"https://github.com/craftcms/cms/commit/c6dcbdffaf6ab3ffe77d317336684d83699f4542"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a7cff81643f53104e93c0dfb0b7391ec16b248f359fdab5d41adf0cc056d12b · sha256:e09375e13492bd27… · /containers/cna/references/2
{"name":"https://github.com/craftcms/cms/security/advisories/GHSA-2xfc-g69j-x2mp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/craftcms/cms/security/advisories/GHSA-2xfc-g69j-x2mp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a7cff81643f53104e93c0dfb0b7391ec16b248f359fdab5d41adf0cc056d12b · sha256:e09375e13492bd27… · /containers/cna/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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