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CVE-2021-23673

22
FAUCET Score

CVE-2021-23673 is a medium-severity cross-site scripting (XSS) vulnerability affecting all versions of the pekeupload package. An attacker can exploit this by tricking a user into uploading a file with a JavaScript payload embedded in its filename, leading to client-side code execution. The attack requires user interaction and has low impact on confidentiality and integrity, with no impact on availability. There is currently no public exploit code, evidence of active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:pekeupload_project:pekeupload:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.81%
Probability of exploitation in next 30 days
EPSS Percentile
53.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0081 is in the 62nd percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

npmGHSA-89q5-mj78-pw5wmedium

Cross-site Scripting in pekeupload

Dec 2, 2021

References

github.com / moxiecode/plupload/blob/120cc0b5dd3373d7181fd11b06ac2557c890d3f0/js/jquery.plupload.queue/jquery.plupload.queue.js%23L226
Broken LinkThird Party Advisory
snyk.io / vuln/SNYK-JS-PEKEUPLOAD-1584360
ExploitThird Party Advisory