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CVE-2026-42573
5.3 MEDIUM
- CVSS version (CVSS): 4.0
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): High (H)
- Attack Requirement (AT): Present (P)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Vulnerable System Impact Confidentiality (VC): Low (L)
- Vulnerable System Impact Integrity (VI): None (N)
- Vulnerable System Impact Availability (VA): None (N)
- Subsequent System Impact Confidentiality (SC): High (H)
- Subsequent System Impact Integrity (SI): High (H)
- Subsequent System Impact Availability (SA): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): High (H)
- Modified Attack Requirement (MAT): Present (P)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Vulnerable System Impact Confidentiality (MVC): Low (L)
- Modified Vulnerable System Impact Integrity (MVI): None (N)
- Modified Vulnerable System Impact Availability (MVA): None (N)
- Modified Subsequent System Impact Confidentiality (MSC): High (H)
- Modified Subsequent System Impact Integrity (MSI): High (H)
- Modified Subsequent System Impact Availability (MSA): Negligible (N)
- Safety (S): Not Defined (X)
- Automatable (AU): Not Defined (X)
- Recovery (R): Not Defined (X)
- Value Density (V): Not Defined (X)
- Vulnerability Response Effort (RE): Not Defined (X)
- Provider Urgency (U): Not Defined (X)
- Confidentiality Req. (CR): Not Defined (X)
- Integrity Req. (IR): Not Defined (X)
- Availability Req. (AR): Not Defined (X)
- Exploit Maturity (E): Not Defined (X)
Activity log
- Created suggestion
Svelte: XSS via DOM Clobbering of Internal Framework State
Svelte is a performance oriented web framework. Prior to version 5.55.7, Svelte was vulnerable to DOM clobbering of its internal framework state on elements, potentially leading to XSS attacks. This issue has been patched in version 5.55.7.
References
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https://github.com/sveltejs/svelte/security/advisories/GHSA-rcqx-6q8c-2c42 x_refsource_CONFIRM
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https://github.com/sveltejs/svelte/releases/tag/svelte%405.55.7 x_refsource_MISC
Affected products
svelte
- ==< 5.55.7
Matching in nixpkgs
pkgs.svelte-check
Svelte code checker
pkgs.svelte-language-server
Language server (implementing the language server protocol) for Svelte
pkgs.vscode-extensions.svelte.svelte-vscode
Svelte language support for VS Code
pkgs.tree-sitter-grammars.tree-sitter-svelte
Tree-sitter grammar for svelte
pkgs.vimPlugins.nvim-treesitter-parsers.svelte
Tree-sitter grammar for svelte
-
nixos-unstable 0.0.0+rev=ae5199d
- nixpkgs-unstable 0.0.0+rev=ae5199d
- nixos-unstable-small 0.0.0+rev=ae5199d
-
nixos-26.05 0.0.0+rev=ae5199d
- nixos-26.05-small 0.0.0+rev=ae5199d
- nixpkgs-26.05-darwin 0.0.0+rev=ae5199d
pkgs.python313Packages.tree-sitter-grammars.tree-sitter-svelte
Python bindings for tree-sitter-svelte
Package maintainers
-
@A-jay98 Ali Jamadi <ali@jamadi.me>
-
@mightyiam Shahar "Dawn" Or <mightyiampresence@gmail.com>
-
@adfaure Adrien Faure <adfaure@pm.me>
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@stepbrobd Yifei Sun <ysun@hey.com>
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@fabianhauser Fabian Hauser <fabian.nixos@fh2.ch>