6.1

CVE-2021-36806: sophos email_appliance Cross-site Scripting

CVSS: 6.1v3.1MediumModified
Published 30-11-2023Last modified 02-12-2024
Open JSON

Vulnerability summary

CVE-2021-36806 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in sophos email_appliance. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36.1% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
0.43%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 30-11-2023
    PublishedVulnerability first disclosed.
  2. 02-12-2024
    Last modifiedVulnerability information updated.

Description

A reflected XSS vulnerability allows an open redirect when the victim clicks a malicious link to an error page on Sophos Email Appliance older than version 4.5.3.4.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

0.00 pp

From 0.43% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Sophos2 products

1 vendor · 2 products

References

1 links