SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-27945

The Squirro Insights Engine was affected by a Reflected Cross-Site Scripting (XSS) vulnerability affecting versions 2.0.0 up to and including 3.2.4.

MEDIUM 6.1EPSS 0.62%

Does this matter?

Lower severity and a low EPSS score (0.62%). Track it; it rarely justifies an emergency change on its own.

Description

The Squirro Insights Engine was affected by a Reflected Cross-Site Scripting (XSS) vulnerability affecting versions 2.0.0 up to and including 3.2.4. An attacker can use the vulnerability to inject malicious JavaScript code into the application, which will execute within the browser of any user who views the relevant application content. The attacker-supplied code can perform a wide variety of actions, such as stealing victims' session tokens or login credentials, performing arbitrary actions on their behalf, and logging their keystrokes.

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
0.62% probability · 49th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
squirro/squirro
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 0.62%26 October 202626 October 2026

EPSS 0.6% 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.