VYPR
Moderate severityNVD Advisory· Published Aug 25, 2023· Updated Feb 13, 2025

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

CVE-2023-40577

Description

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
github.com/prometheus/alertmanagerGo
< 0.25.10.25.1

Affected products

68

Patches

Vulnerability mechanics

References

4

News mentions

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