CVE Explorer

CVE-2026-53902

MCO does not properly enforce authorization checks in the /customer/servlet/mco/webapi/profile-sections/group-membership endpoint. An authenticated user can modify their group membership without proper authorization checks, allowing privilege escalation. An attacker can add themselves to arbitrary groups by supplying a valid group ID, which can be obtained via other application functionalities (e.g. /customer/servlet/mco/webapi/group/picker/groups), provided he has necessary permissions, or pote

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d23424dff06b8a6d8cb47076c8146ba4c04d7f1bfde0f8efd1b8c1e09071ec60

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-266","description":"CWE-266 Incorrect Privilege Assignment","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:607a04d2cf47860e621bde390076f60026bf8861a777f41b49d2e3939665a0ff · sha256:3d036134c9f2c4a5… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-863","description":"CWE-863 Incorrect Authorization","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:607a04d2cf47860e621bde390076f60026bf8861a777f41b49d2e3939665a0ff · sha256:3d036134c9f2c4a5… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion

{"defaultStatus":"unknown","product":"MCO","vendor":"MyComplianceOffice","versions":[{"status":"affected","version":"25.3.3.1","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:607a04d2cf47860e621bde390076f60026bf8861a777f41b49d2e3939665a0ff · sha256:3d036134c9f2c4a5… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"L…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:607a04d2cf47860e621bde390076f60026bf8861a777f41b49d2e3939665a0ff · sha256:3d036134c9f2c4a5… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions

{"cweId":"CWE-266","description":"CWE-266 Incorrect Privilege Assignment","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:607a04d2cf47860e621bde390076f60026bf8861a777f41b49d2e3939665a0ff · sha256:3d036134c9f2c4a5… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-863","description":"CWE-863 Incorrect Authorization","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:607a04d2cf47860e621bde390076f60026bf8861a777f41b49d2e3939665a0ff · sha256:3d036134c9f2c4a5… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions

{"tags":["third-party-advisory"],"url":"https://cert.pl/en/posts/2026/07/CVE-2026-53902"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:607a04d2cf47860e621bde390076f60026bf8861a777f41b49d2e3939665a0ff · sha256:3d036134c9f2c4a5… · /containers/cna/references/0

{"tags":["product"],"url":"https://mco.mycomplianceoffice.com/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:607a04d2cf47860e621bde390076f60026bf8861a777f41b49d2e3939665a0ff · sha256:3d036134c9f2c4a5… · /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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