CVE-2023-1892Public exploitNetwork attack vector

Reflected XSS via unescaped Metrics period parameter

Published Apr 5, 2023 · Updated Feb 10, 2025

Reflected XSS in Sidekiq Web 7.0.4 through 7.0.7 allows remote attackers to execute script in a user's browser via a crafted Metrics URL. The /metrics and /metrics/:name routes assign the period query parameter to @period and render it without HTML escaping. Exploitation requires a user to open the crafted URL while Sidekiq Web is reachable, allowing script to act in that browser's Sidekiq Web origin.

CVSS severity8.3
High
EPSS probability2.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Reflected XSS in Sidekiq Web 7.0.4 through 7.0.7 allows remote attackers to execute script in a user's browser via a crafted Metrics URL. The /metrics and /metrics/:name routes assign the period query parameter to @period and render it without HTML escaping. Exploitation requires a user to open the crafted URL while Sidekiq Web is reachable, allowing script to act in that browser's Sidekiq Web origin.

The record

CVE
CVE-2023-1892
Published
Apr 5, 2023
Updated
Feb 10, 2025
Vendor
Contributed Systems LLC
Product
Sidekiq
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.0.4 <unspecified
  2. Affected versionversion=unspecified <7.0.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Contributed Systems LLC · Sidekiqversion=7.0.4 <unspecified; version=unspecified <7.0.8

Published CVSS scores

9.6NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
8.3huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo