Cross-site Scripting (XSS)

2023-08-2502:53:58

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

cross-site scripting

html sanitization

alert.elm

post request

api endpoint

javascript execution

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

0.0004 Low

EPSS

Percentile

14.0%

JSON

github.com/prometheus/alertmanager is vulnerable to Cross-site Scripting (XSS). The vulnerability exists due to the lack of HTML sanitization in the generatorURL field of Alert.elm, which allows an attacker to inject and execute malicious JavaScript by sending a POST request to the /api/v1/alerts endpoint.

CPENameOperatorVersion
github.com/prometheus/alertmanagereqv0.26.0-rc.0
github.com/prometheus/alertmanagerlev0.25.0
prometheus-alertmanager:sideq0.21.0+ds-2
alertmanagereq0.23.0-r3
alertmanagereq0.25.0-r5
alertmanagereq0.24.0-r6
alertmanagereq0.24.0-r4
alertmanagereq0.23.0-r2
alertmanagereq0.22.1-r1
alertmanagereq0.25.0-r6

Name	Operator	Version
github.com/prometheus/alertmanager	eq	v0.26.0-rc.0
github.com/prometheus/alertmanager	le	v0.25.0
prometheus-alertmanager:sid	eq	0.21.0+ds-2
alertmanager	eq	0.23.0-r3
alertmanager	eq	0.25.0-r5
alertmanager	eq	0.24.0-r6
alertmanager	eq	0.24.0-r4
alertmanager	eq	0.23.0-r2
alertmanager	eq	0.22.1-r1
alertmanager	eq	0.25.0-r6