CVE Explorer

CVE-2026-33978

Notesnook is a note-taking app focused on user privacy & ease of use. Prior to version 3.3.17, a stored XSS vulnerability exists in the mobile share / web clip flow because attacker-controlled clip metadata is concatenated into HTML without escaping and then rendered with innerHTML inside the mobile share editor WebView. An attacker can control the shared title metadata (for example through Android/iOS share metadata such as TITLE / SUBJECT, or through link-preview title data) and inject HTML su

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cadb7ba55bf068700832ebb449b1276a3b357aff932d3ec2084b9fe04b947113

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"notesnook","vendor":"streetwriters","versions":[{"status":"affected","version":"< 3.3.17"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:d3a7573fe5045a6b54b27179f6e74d12473f43b02ee1432be14e03365db8a1d1 · sha256:a3f42d4d61b02b21… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:d3a7573fe5045a6b54b27179f6e74d12473f43b02ee1432be14e03365db8a1d1 · sha256:a3f42d4d61b02b21… · /containers/cna/metrics/0/cvssV3_1

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_v5cwe
urn:baitaphish:normalized-source-record:v2:d3a7573fe5045a6b54b27179f6e74d12473f43b02ee1432be14e03365db8a1d1 · sha256:a3f42d4d61b02b21… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/streetwriters/notesnook/commit/fc8807f74db5539036c5e58d3d68a11ea54098db","tags":["x_refsource_MISC"],"url":"https://github.com/streetwriters/notesnook/commit/fc8807f74db5539036c5e58d3d68a11ea54098db"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d3a7573fe5045a6b54b27179f6e74d12473f43b02ee1432be14e03365db8a1d1 · sha256:a3f42d4d61b02b21… · /containers/cna/references/1

{"name":"https://github.com/streetwriters/notesnook/releases/tag/3.3.17-android","tags":["x_refsource_MISC"],"url":"https://github.com/streetwriters/notesnook/releases/tag/3.3.17-android"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d3a7573fe5045a6b54b27179f6e74d12473f43b02ee1432be14e03365db8a1d1 · sha256:a3f42d4d61b02b21… · /containers/cna/references/2

{"name":"https://github.com/streetwriters/notesnook/security/advisories/GHSA-f27j-fqc6-v7pm","tags":["x_refsource_CONFIRM"],"url":"https://github.com/streetwriters/notesnook/security/advisories/GHSA-f27j-fqc6-v7pm"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d3a7573fe5045a6b54b27179f6e74d12473f43b02ee1432be14e03365db8a1d1 · sha256:a3f42d4d61b02b21… · /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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