// For flags

CVE-2023-40577

Alertmanager UI is vulnerable to stored XSS via the /api/v1/alerts endpoint

Severity Score

5.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

Alertmanager handles alerts sent by client applications such as the Prometheus server. An attacker with the permission to perform POST requests on the /api/v1/alerts endpoint could be able to execute arbitrary JavaScript code on the users of Prometheus Alertmanager. This issue has been fixed in Alertmanager version 0.2.51.

Alertmanager gestiona alertas enviadas por aplicaciones cliente como el servidor Prometheus. Un atacante con permiso para realizar peticiones POST en el endpoint "/api/v1/alerts" podría ser capaz de ejecutar código JavaScript arbitrario en los usuarios de Prometheus Alertmanager. Este problema se ha solucionado en la versión 0.2.51 de Alertmanager.

Prometheus Alertmanager is vulnerable to cross-site scripting due to improper validation of user-supplied input by the /api/v1/alerts endpoint. This issue could allow a remote attacker to inject malicious script into a web page, which would be executed in a victim's web browser within the hosting website once the page is viewed, allow the attacker to steal the victim's cookie-based authentication credentials.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-08-16 CVE Reserved
  • 2023-08-25 CVE Published
  • 2024-08-31 EPSS Updated
  • 2024-10-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Prometheus
Search vendor "Prometheus"
 Alertmanager
Search vendor "Prometheus" for product "Alertmanager"
 0.25.0
Search vendor "Prometheus" for product "Alertmanager" and version "0.25.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected