CVE-2026-27902
5.3
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
Summary
Svelte performance oriented web framework. Prior to version 5.53.5, errors from transformError were not correctly escaped prior to being embedded in the HTML output, causing potential HTML injection and XSS if attacker-controlled content is returned from transformError. Version 5.53.5 fixes the issue.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| sveltejs | svelte | >= 5.53.0, < 5.53.5 | affected |
Weaknesses
- CWE-79: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/sveltejs/svelte/security/advisories/GHSA-qgvg-pr8v-6rr3
- https://github.com/sveltejs/svelte/commit/0298e979371bb583855c9810db79a70a551d22b9
- https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.5
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