SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2021-40959

A reflected cross-site scripting vulnerability in MONITORAPP Application Insight Web Application Firewall (AIWAF) <= 4.1.6 and <=5.0 was identified on the subpage `/process_management/process_status.xhr.php`.

MEDIUM 6.1EPSS 0.24%

Does this matter?

Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.

Description

A reflected cross-site scripting vulnerability in MONITORAPP Application Insight Web Application Firewall (AIWAF) <= 4.1.6 and <=5.0 was identified on the subpage `/process_management/process_status.xhr.php`. This vulnerability allows an attacker to inject malicious scripts that execute in the context of the victim's session.

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
0.24% probability · 15th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 0.24%26 October 202626 October 2026

EPSS 0.2% 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.