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CVE-2026-27901

Svelte performance oriented web framework. Prior to version 5.53.5, the contents of `bind:innerText` and `bind:textContent` on `contenteditable` elements were not properly escaped. This could enable HTML injection and Cross-Site Scripting (XSS) if rendering untrusted data as the binding's initial value on the server. Version 5.53.5 fixes the issue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e17b95fe5869cde736d828fb81a59fd741c4824bc1ae8be9feabe458e05347ee
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"svelte","vendor":"sveltejs","versions":[{"status":"affected","version":"< 5.53.5"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1a602f116a8570637a8939263f895eadf25f23fdd8c1331376d0a6ffe97220c7 · sha256:76f6393fff0df531… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1a602f116a8570637a8939263f895eadf25f23fdd8c1331376d0a6ffe97220c7 · sha256:76f6393fff0df531… · /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_v5cwe
    urn:baitaphish:normalized-source-record:v2:1a602f116a8570637a8939263f895eadf25f23fdd8c1331376d0a6ffe97220c7 · sha256:76f6393fff0df531… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d","tags":["x_refsource_MISC"],"url":"https://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1a602f116a8570637a8939263f895eadf25f23fdd8c1331376d0a6ffe97220c7 · sha256:76f6393fff0df531… · /containers/cna/references/1
{"name":"https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.5","tags":["x_refsource_MISC"],"url":"https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1a602f116a8570637a8939263f895eadf25f23fdd8c1331376d0a6ffe97220c7 · sha256:76f6393fff0df531… · /containers/cna/references/2
{"name":"https://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh","tags":["x_refsource_CONFIRM"],"url":"https://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1a602f116a8570637a8939263f895eadf25f23fdd8c1331376d0a6ffe97220c7 · sha256:76f6393fff0df531… · /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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