CVE-2021-37504

jQuery-Upload-File XSS in fileNameStr

6.1 Medium

A cross-site scripting (XSS) vulnerability in the fileNameStr parameter of jQuery-Upload-File v4.0.11 allows attackers to execute arbitrary web scripts or HTML via a crafted file with a Javascript payload in the file name.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.87%Down 0.2 points since Feb 26, 2022

What each source reports

NVD Score used 6.1

Record: CVE-2021-37504
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-37504
Updated: 2026-11-02

EUVDEUVD-2022-0802 No score

Record: EUVD-2022-0802
Updated: 2026-11-02

GitHub AdvisoriesGHSA-43x9-7hfv-mxrf 6.1

jQuery-Upload-File XSS in fileNameStr

Record: GHSA-43x9-7hfv-mxrf
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSVGHSA-43x9-7hfv-mxrf 6.1

jQuery-Upload-File XSS in fileNameStr

Record: GHSA-43x9-7hfv-mxrf
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

hayageek jquery upload file

Affected packages

Affected packages
Package	Affected	Fixed
`jquery-file-upload` npm	through 4.0.11	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-37504 is a medium vulnerability (CVSS 6.1) in Hayageek Jquery Upload File, published February 25, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.87%, the 58th percentile. No source names a fixed version.