Cross-site Scripting (XSS) Affecting promxy package, versions <0.0.94-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.57% (43rd percentile)

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  • Snyk IDSNYK-WOLFILATEST-PROMXY-17379477
  • published19 Jun 2026
  • disclosed25 Aug 2023

Introduced: 25 Aug 2023

CVE-2023-40577  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Wolfi promxy to version 0.0.94-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream promxy package and not the promxy package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1