CVE Explorer

CVE-2026-1009

A stored cross-site scripting (XSS) vulnerability exists in the Altium Forum due to missing server-side input sanitization in forum post content. An authenticated attacker can inject arbitrary JavaScript into forum posts, which is stored and executed when other users view the affected post. Successful exploitation allows the attacker’s payload to execute in the context of the victim’s authenticated Altium 365 session, enabling unauthorized access to workspace data, including design files and wor

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:04d663529334959426a0d0ed563402b37bfe5a68d1d918f8ff9385899801efa1

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-284","description":"CWE-284 Improper Access Control","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:dc4907e5f19954097daea7bdfa4bb3652171132f9892f10b02de47568442b762 · sha256:b71f8e03c57f22e5… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-79","description":"CWE-79 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:dc4907e5f19954097daea7bdfa4bb3652171132f9892f10b02de47568442b762 · sha256:b71f8e03c57f22e5… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","modules":["Forum post editing and rendering"],"platforms":["Web"],"product":"Altium Live","vendor":"Altium","versions":[{"changes":[{"at":"1.2.3","status":"unaffected"}],"lessThanOrEqual":"1.2.2","status":"affected","version":"0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:dc4907e5f19954097daea7bdfa4bb3652171132f9892f10b02de47568442b762 · sha256:b71f8e03c57f22e5… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:dc4907e5f19954097daea7bdfa4bb3652171132f9892f10b02de47568442b762 · sha256:b71f8e03c57f22e5… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"cweId":"CWE-284","description":"CWE-284 Improper Access Control","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:dc4907e5f19954097daea7bdfa4bb3652171132f9892f10b02de47568442b762 · sha256:b71f8e03c57f22e5… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-79","description":"CWE-79 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:dc4907e5f19954097daea7bdfa4bb3652171132f9892f10b02de47568442b762 · sha256:b71f8e03c57f22e5… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"url":"https://www.altium.com/platform/security-compliance/security-advisories"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:dc4907e5f19954097daea7bdfa4bb3652171132f9892f10b02de47568442b762 · sha256:b71f8e03c57f22e5… · /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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