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CVE-2026-56381

Craft CMS from version 5.0.0-RC1 contains a stored cross-site scripting vulnerability in the User Permissions page where user group names are rendered without proper HTML escaping. Attackers with admin access can inject arbitrary JavaScript via the user group name field that executes when other users view or edit permissions.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4532c8d7e8c3b90ce0e9f89c346d9df7df8f572a63bfa16d350c3b6aa492a885
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":4.6,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact"…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5be2220102384c45155a8fda7527a25904644f83883bc960388d9b217e35ce00 · sha256:ab7050e97f6b6332… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5be2220102384c45155a8fda7527a25904644f83883bc960388d9b217e35ce00 · sha256:ab7050e97f6b6332… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","packageURL":"pkg:composer/craftcms/cms","product":"cms","vendor":"craftcms","versions":[{"lessThan":"5.8.22","status":"affected","version":"5.0.0-RC1","versionType":"semver"},{"status":"unaffected","version":"5.8.22","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5be2220102384c45155a8fda7527a25904644f83883bc960388d9b217e35ce00 · sha256:ab7050e97f6b6332… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":4.6,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5be2220102384c45155a8fda7527a25904644f83883bc960388d9b217e35ce00 · sha256:ab7050e97f6b6332… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5be2220102384c45155a8fda7527a25904644f83883bc960388d9b217e35ce00 · sha256:ab7050e97f6b6332… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5be2220102384c45155a8fda7527a25904644f83883bc960388d9b217e35ce00 · sha256:ab7050e97f6b6332… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["exploit"],"url":"https://github.com/craftcms/cms/security/advisories/GHSA-g3hp-vvqf-8vw6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5be2220102384c45155a8fda7527a25904644f83883bc960388d9b217e35ce00 · sha256:ab7050e97f6b6332… · /containers/adp/0/references/0
{"name":"GHSA Advisory GHSA-g3hp-vvqf-8vw6","tags":["vendor-advisory"],"url":"https://github.com/craftcms/cms/security/advisories/GHSA-g3hp-vvqf-8vw6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5be2220102384c45155a8fda7527a25904644f83883bc960388d9b217e35ce00 · sha256:ab7050e97f6b6332… · /containers/cna/references/0
{"name":"VulnCheck Advisory: Craft CMS - Stored XSS via User Group Name in User Permissions Page","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/craft-cms-stored-xss-via-user-group-name-in-user-permissions-page"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5be2220102384c45155a8fda7527a25904644f83883bc960388d9b217e35ce00 · sha256:ab7050e97f6b6332… · /containers/cna/references/1

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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