CVE-2025-67202Public exploitNetwork attack vector

Script execution via unescaped namespace URL

Published May 7, 2026 · Updated May 7, 2026

Reflected XSS in Sidekiq-cron 2.3.1 and earlier allows remote attackers to execute script via a crafted namespace URL. The cron.erb and legacy cron.erb templates insert @current_namespace from the URL path into HTML and form actions without HTML or URL escaping. A victim with access to the mounted Sidekiq web UI must open the crafted link; the script then runs in that UI's browser context and can read accessible session or storage data.

CVSS severity6.1
Medium
EPSS probability0.19%
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 Sidekiq-cron 2.3.1 and earlier allows remote attackers to execute script via a crafted namespace URL. The cron.erb and legacy cron.erb templates insert @current_namespace from the URL path into HTML and form actions without HTML or URL escaping. A victim with access to the mounted Sidekiq web UI must open the crafted link; the script then runs in that UI's browser context and can read accessible session or storage data.

The record

CVE
CVE-2025-67202
Published
May 7, 2026
Updated
May 7, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 2026CVE publishedPublication date reported by the CVE source.
  2. May 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

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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

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Your stack

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