SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2023-27294

Improper neutralization of input during web page generation allows an authenticated attacker with access to a restricted account to submit malicious Javascript as the description for a calendar event, which would then be executed in other users'…

MEDIUM 5.4EPSS 0.53%

Does this matter?

Lower severity and a low EPSS score (0.53%). Track it; it rarely justifies an emergency change on its own.

Description

Improper neutralization of input during web page generation allows an authenticated attacker with access to a restricted account to submit malicious Javascript as the description for a calendar event, which would then be executed in other users' browsers if they browse to that event. This could result in stealing session tokens from users with higher permission levels or forcing users to make actions without their knowledge.

CVSS 3.1
5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.53% probability · 43th percentile
CISA KEV
Not listed
Weakness
CWE-79
Affected
opencats/opencats
Source
vulnreport@tenable.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.