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CVE-2021-3395

MediumPublished

A cross-site scripting (XSS) vulnerability in Pryaniki 6.44.3 allows remote authenticated users to upload an arbitrary file. The JavaScript code will...

Published: Feb 2, 2021
Updated: Aug 3, 2024
Assigning CNA: mitre
Evidence observed: Aug 8, 2026

Primary CVSS

5.4/ 10Medium

nvd · CVSS 3.1

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

EPSS probability estimate

0.8%

Low · next 30 days

Percentile: 53.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A cross-site scripting (XSS) vulnerability in Pryaniki 6.44.3 allows remote authenticated users to upload an arbitrary file. The JavaScript code will execute when someone visits the attachment.

Sources

CVE-2021-3395PoC
Proof-of-concept for CVE-2021-3395: authenticated stored XSS in Pryaniki 6.44.3 via arbitrary file upload, triggering JavaScript on attachment view.

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