CVE-2021-29261
The unofficial Svelte extension before 104.8.0 for Visual Studio Code allows attackers to execute...
The unofficial Svelte extension before 104.8.0 for Visual Studio Code allows attackers to execute arbitrary code via a crafted workspace configuration.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The unofficial Svelte extension before 104.8.0 for Visual Studio Code allows attackers to execute arbitrary code via a crafted workspace configuration.
- Record
CVE-2021-29261- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
The unofficial Svelte extension before 104.8.0 for Visual Studio Code allows attackers to execute arbitrary code via a crafted workspace configuration.
- Record
CVE-2021-29261- Updated
- 2026-11-02
EUVDEUVD-2021-15900 No score
The unofficial Svelte extension before 104.8.0 for Visual Studio Code allows attackers to execute arbitrary code via a crafted workspace configuration.
- Record
EUVD-2021-15900- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7hhg-cf2m-8xw7 No score
The unofficial Svelte extension before 104.8.0 for Visual Studio Code allows attackers to execute...
The unofficial Svelte extension before 104.8.0 for Visual Studio Code allows attackers to execute arbitrary code via a crafted workspace configuration.
- Record
GHSA-7hhg-cf2m-8xw7- Updated
- 2026-11-02
OSV
The unofficial Svelte extension before 104.8.0 for Visual Studio Code allows attackers to execute arbitrary code via a crafted workspace configuration.
- Record
CVE-2021-29261- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-29261 is a high vulnerability (CVSS 7.8) in Svelte, published April 5, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.37%, the 72nd percentile. No source names a fixed version.
References
marketplace.visualstudio.com/items?itemName=svelte.svelte-vscode
github.com/sveltejs/language-tools/releases
vuln.ryotak.me/advisories/3
nvd.nist.gov/vuln/detail/CVE-2021-29261