CVE-2024-32887Public exploitNetwork attack vector

Session compromise via unescaped metrics filter

Published Apr 26, 2024 · Updated Aug 2, 2024

Reflected XSS in the Sidekiq Web UI 7.2.0 through 7.2.3 allows remote authenticated users to run JavaScript via the metrics filter. The metrics.erb view inserts the substr parameter into an HTML input value without escaping, so quotes and script markup break out of the attribute. A user must open the crafted URL while authenticated to the Web UI; the script then runs in that origin and can act with the user's session.

CVSS severity5.5
Medium
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in the Sidekiq Web UI 7.2.0 through 7.2.3 allows remote authenticated users to run JavaScript via the metrics filter. The metrics.erb view inserts the substr parameter into an HTML input value without escaping, so quotes and script markup break out of the attribute. A user must open the crafted URL while authenticated to the Web UI; the script then runs in that origin and can act with the user's session.

The record

CVE
CVE-2024-32887
Published
Apr 26, 2024
Updated
Aug 2, 2024
Vendor
Contributed Systems LLC
Product
Sidekiq
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=7.2.0
  2. Affected versionversion=>= 7.2.0, < 7.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Contributed Systems LLC · Sidekiqversion=7.2.0; version=>= 7.2.0, < 7.2.4

Published CVSS scores

5.5GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/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
Privilegesauthenticated
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

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Your stack

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