Visual Studio Code: Cross-site scripting, possibly remote code execution
Summary
Visual Studio Code from 1.0.0 before 1.145.3 contains a cross-site scripting flaw (CWE-79). Microsoft's CVE record also uses the title Remote Code Execution, so the exact impact is not fully clear. According to the CVSS vector, a remote attacker needs no privileges but a user must interact, for example by opening a crafted link or repository. Successful exploitation could affect confidentiality, integrity and availability on the affected developer workstation.
Affected
- Microsoft Visual Studio Code from 1.0.0 before 1.145.3
Fixed in
- Version 1.145.3 according to the CVE record and the Microsoft advisory. The release was not independently verified.
Workaround
Unknown. No vendor workaround found. Until patched, avoid opening untrusted repositories and links.
Exploitation
- No evidence of exploitation in the wild found.
- CVSS temporal vector E:U (exploitation unproven).
- Not listed in CISA KEV according to a third-party tracker.
- No public proof of concept found.
Our recommendation
- Update all Visual Studio Code installations, including developer laptops and remote or dev containers, to 1.145.3 or later after confirming the version on the MSRC page.
- Do not open untrusted repositories or links until patched.
- Check the NVD entry for CPE data and KEV status once analysis is complete.
Information from Microsoft (Patch Tuesday November 2026)
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- CVE Record CVE-2026-119975 www.cve.org
- Microsoft Security Update Guide msrc.microsoft.com
- Visual Studio Code 1.145 Release Notes code.visualstudio.com
- GitHub microsoft/vscode Releases github.com
- Strix CVE-2026-119975 www.strix.ai
- CyStack Visual Studio Code Vulnerability Database cystack.net
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 10 Nov 2026, 21:36.
Original description (NVD)
Improper neutralization of input during web page generation ('cross-site scripting') in Visual Studio Code allows an unauthorized attacker to execute code over a network.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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