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Vulnerability details: VCID-eub6-k2yh-suhb
Vulnerability ID VCID-eub6-k2yh-suhb
Aliases CVE-2026-27901
GHSA-phwv-c562-gvmh
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 5.4 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-27901.json
epss 0.00034 https://api.first.org/data/v1/epss?cve=CVE-2026-27901
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-phwv-c562-gvmh
cvssv4 5.3 https://github.com/sveltejs/svelte
generic_textual MODERATE https://github.com/sveltejs/svelte
cvssv4 5.3 https://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d
generic_textual MODERATE https://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d
ssvc Track https://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d
cvssv4 5.3 https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.5
ssvc Track https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.5
cvssv4 5.3 https://github.com/sveltejs/svelte/releases/tag/svelte@5.53.5
generic_textual MODERATE https://github.com/sveltejs/svelte/releases/tag/svelte@5.53.5
cvssv3.1_qr MODERATE https://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh
cvssv4 5.3 https://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh
generic_textual MODERATE https://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh
ssvc Track https://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh
cvssv4 5.3 https://nvd.nist.gov/vuln/detail/CVE-2026-27901
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2026-27901
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-27901.json
https://api.first.org/data/v1/epss?cve=CVE-2026-27901
https://github.com/sveltejs/svelte
https://github.com/sveltejs/svelte/releases/tag/svelte@5.53.5
0df5abcae223058ceb95491470372065fb87951d https://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d
2442918 https://bugzilla.redhat.com/show_bug.cgi?id=2442918
CVE-2026-27901 https://nvd.nist.gov/vuln/detail/CVE-2026-27901
GHSA-phwv-c562-gvmh https://github.com/advisories/GHSA-phwv-c562-gvmh
GHSA-phwv-c562-gvmh https://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh
svelte%405.53.5 https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.5
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-27901.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: 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 Found at https://github.com/sveltejs/svelte
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: 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 Found at https://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-26T14:30:46Z/ Found at https://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d
Vector: 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 Found at https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.5
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-26T14:30:46Z/ Found at https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.5
Vector: 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 Found at https://github.com/sveltejs/svelte/releases/tag/svelte@5.53.5
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: 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 Found at https://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-26T14:30:46Z/ Found at https://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh
Vector: 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 Found at https://nvd.nist.gov/vuln/detail/CVE-2026-27901
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.1042
EPSS Score 0.00034
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:50:42.994115+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/27xxx/CVE-2026-27901.json 38.6.0