CVE-2020-15779
Path Traversal in socket.io-file
A Path Traversal issue was discovered in the socket.io-file package through 2.0.31 for Node.js. The socket.io-file::createFile message uses path.join with ../ in the name option, and the uploadDir and rename options determine the path.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A Path Traversal issue was discovered in the socket.io-file package through 2.0.31 for Node.js. The socket.io-file::createFile message uses path.join with ../ in the name option, and the uploadDir and rename options determine the path.
- Record
CVE-2020-15779- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
CVE List No score
A Path Traversal issue was discovered in the socket.io-file package through 2.0.31 for Node.js. The socket.io-file::createFile message uses path.join with ../ in the name option, and the uploadDir and rename options determine the path.
- Record
CVE-2020-15779- Updated
- 2026-11-02
EUVDEUVD-2020-0547 No score
A Path Traversal issue was discovered in the socket.io-file package through 2.0.31 for Node.js. The socket.io-file::createFile message uses path.join with ../ in the name option, and the uploadDir and rename options determine the path.
- Record
EUVD-2020-0547- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9h4g-27m8-qjrg
Path Traversal in socket.io-file
All versions of socket.io-file are vulnerable to Path Traversal. The package fails to sanitize user input and uses it to generate the file upload paths. The socket.io-file::createFile message contains a name option that is passed directly to path.join(). It is possible to upload files to arbitrary folders on the server by sending relative paths on the name value, such as ../../test.js. The uploadDir and rename options can be used to define the file upload path.
- Record
GHSA-9h4g-27m8-qjrg- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVGHSA-9h4g-27m8-qjrg
Path Traversal in socket.io-file
All versions of socket.io-file are vulnerable to Path Traversal. The package fails to sanitize user input and uses it to generate the file upload paths. The socket.io-file::createFile message contains a name option that is passed directly to path.join(). It is possible to upload files to arbitrary folders on the server by sending relative paths on the name value, such as ../../test.js. The uploadDir and rename options can be used to define the file upload path.
- Record
GHSA-9h4g-27m8-qjrg- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
socket.io-filenpm |
through 2.0.31 | None known |
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-2020-15779 is a high vulnerability (CVSS 7.5) in Socket.io-file Project Socket.io-file, published July 7, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.58%, the 75th percentile. No source names a fixed version.