CVE-2021-35506

Name: CVE-2021-35506
Creator: NVD / NIST
Published: 2021-10-05T13:15:07.867+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.71%

Last modified Jun 17, 2026

CVE-2021-35506 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Afian FileRun 2021.03.26 allows XSS when an administrator encounters a crafted document during use of the HTML Editor for a preview or edit action.. EPSS estimates a 0.71% chance of exploitation in the next 30 days.

Description

Afian FileRun 2021.03.26 allows XSS when an administrator encounters a crafted document during use of the HTML Editor for a preview or edit action.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.71%

48.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Afian	Filerun	2021.03.26

References

http://blog.filerun.comProduct
https://syntegris-sec.github.io/filerun-advisoryExploit, Third Party Advisory
http://blog.filerun.comProduct
https://syntegris-sec.github.io/filerun-advisoryExploit, Third Party Advisory

Timeline

Published: Oct 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-35506?

Afian FileRun 2021.03.26 allows XSS when an administrator encounters a crafted document during use of the HTML Editor for a preview or edit action.

How severe is CVE-2021-35506?

CVE-2021-35506 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.

How do I fix CVE-2021-35506?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-35506?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST