SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-13992

A Stored XSS issue allows remote unauthenticated attackers to abuse a helpdesk user's logged in session.

MEDIUM 6.1EPSS 1.21%

Does this matter?

Lower severity and a low EPSS score (1.21%). Track it; it rarely justifies an emergency change on its own.

Description

An issue was discovered in Mods for HESK 3.1.0 through 2019.1.0. A Stored XSS issue allows remote unauthenticated attackers to abuse a helpdesk user's logged in session. A user with sufficient privileges to change their login-page image must open a crafted ticket.

CVSS 3.1
6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
1.21% probability · 68th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
mods-for-hesk/mods for hesk
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.21%26 October 202626 October 2026

EPSS 1.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.