CVE Explorer
CVE-2026-22808
fleetdm/fleet is open source device management software. Prior to versions 4.78.2, 4.77.1, 4.76.2, 4.75.2, and 4.53.3, if Windows MDM is enabled, an unauthenticated attacker can exploit this XSS vulnerability to steal a Fleet administrator's authentication token (FLEET::auth_token) from localStorage. This could allow unauthorized access to Fleet, including administrative access, visibility into device data, and modification of configuration. Versions 4.78.2, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 fi
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"fleet","vendor":"fleetdm","versions":[{"status":"affected","version":">= 4.78.0, < 4.78.2"},{"status":"affected","version":">= 4.77.0, < 4.77.1"},{"status":"affected","version":">= 4.76.0, < 4.76.2"},{"status":"affected","version":"< 4.53.3"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:729e3a708f22dd5ebd6492d517e9e47066cb17e9d1fb2ad7fc166f61923e399b · sha256:f114ad38163cc5a4… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":5.5,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:729e3a708f22dd5ebd6492d517e9e47066cb17e9d1fb2ad7fc166f61923e399b · sha256:f114ad38163cc5a4… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:729e3a708f22dd5ebd6492d517e9e47066cb17e9d1fb2ad7fc166f61923e399b · sha256:f114ad38163cc5a4… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/fleetdm/fleet/security/advisories/GHSA-gfpw-jgvr-cw4j","tags":["x_refsource_CONFIRM"],"url":"https://github.com/fleetdm/fleet/security/advisories/GHSA-gfpw-jgvr-cw4j"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:729e3a708f22dd5ebd6492d517e9e47066cb17e9d1fb2ad7fc166f61923e399b · sha256:f114ad38163cc5a4… · /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.