CVE-2020-24807
File restriction bypass in socket.io-file
The socket.io-file package through 2.0.31 for Node.js relies on client-side validation of file types, which allows remote attackers to execute arbitrary code by uploading an executable file via a modified JSON name field. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
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 socket.io-file package through 2.0.31 for Node.js relies on client-side validation of file types, which allows remote attackers to execute arbitrary code by uploading an executable file via a modified JSON name field. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
- Record
CVE-2020-24807- 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 - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
The socket.io-file package through 2.0.31 for Node.js relies on client-side validation of file types, which allows remote attackers to execute arbitrary code by uploading an executable file via a modified JSON name field. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
- Record
CVE-2020-24807- Updated
- 2026-11-02
EUVDEUVD-2021-1175 No score
The socket.io-file package through 2.0.31 for Node.js relies on client-side validation of file types, which allows remote attackers to execute arbitrary code by uploading an executable file via a modified JSON name field. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
- Record
EUVD-2021-1175- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6495-8jvh-f28x
File restriction bypass in socket.io-file
All versions of socket.io-fileare vulnerable to a file restriction bypass. The validation for valid file types only happens on the client-side, which allows an attacker to intercept the Websocket request post-validation and alter the name value to upload any file types.
No fix is currently available. Consider using an alternative package until a fix is made available.
- Record
GHSA-6495-8jvh-f28x- 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 - Weakness
- CWE-20
- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-r2gr-fhmr-66c5
Duplicate Advisory: "Arbitrary code execution in socket.io-file"
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-6495-8jvh-f28x. This link is maintained to preserve external references.
Original Description
"The socket.io-file package through 2.0.31 for Node.js relies on client-side validation of file types, which allows remote attackers to execute arbitrary code by uploading an executable file via a modified JSON name field. NOTE: This vulnerability only affects products that are no longer supported by the maintainer."
- Record
GHSA-r2gr-fhmr-66c5- 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 - Weakness
- CWE-20
- Updated
- 2026-11-02
OSVGHSA-6495-8jvh-f28x
File restriction bypass in socket.io-file
All versions of socket.io-fileare vulnerable to a file restriction bypass. The validation for valid file types only happens on the client-side, which allows an attacker to intercept the Websocket request post-validation and alter the name value to upload any file types.
No fix is currently available. Consider using an alternative package until a fix is made available.
- Record
GHSA-6495-8jvh-f28x- 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 - Weakness
- CWE-20
- Updated
- 2026-11-02
OSVGHSA-r2gr-fhmr-66c5
Duplicate Advisory: "Arbitrary code execution in socket.io-file"
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-6495-8jvh-f28x. This link is maintained to preserve external references.
Original Description
"The socket.io-file package through 2.0.31 for Node.js relies on client-side validation of file types, which allows remote attackers to execute arbitrary code by uploading an executable file via a modified JSON name field. NOTE: This vulnerability only affects products that are no longer supported by the maintainer."
- Record
GHSA-r2gr-fhmr-66c5- 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 - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
socket.io-filenpm |
through 2.0.31 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| affected, aliases, references | EUVD | |
| first indexed | GitHub Advisories, OSV | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-24807 is a high vulnerability (CVSS 7.8) in Socket.io-file Project Socket.io-file, published October 2, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.10%, the 81st percentile. No source names a fixed version.