CVE-2025-4011Network attack vector

Stored XSS via unescaped custom-query names

Published Apr 28, 2025 · Updated Apr 28, 2025

Stored XSS in Redmine 6.0.0 through 6.0.3 allows remote authenticated users to execute script via a crafted custom-query name. The custom-query handler persists the attacker-controlled Name value and later inserts it into HTML without neutralizing markup. The attacker needs permission to save a custom query, and a victim must view a page that lists it, enabling script-driven content changes in the victim's browser.

CVSS severity5.1
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Redmine 6.0.0 through 6.0.3 allows remote authenticated users to execute script via a crafted custom-query name. The custom-query handler persists the attacker-controlled Name value and later inserts it into HTML without neutralizing markup. The attacker needs permission to save a custom query, and a victim must view a page that lists it, enabling script-driven content changes in the victim's browser.

The record

CVE
CVE-2025-4011
Published
Apr 28, 2025
Updated
Apr 28, 2025
Vendor
Redmine
Product
Redmine
Classifications
CWE-79, CWE-94, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2025Record 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=6.0.0
  2. Affected versionversion=6.0.1
  3. Affected versionversion=6.0.2
  4. Affected versionversion=6.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Redmine · Redmineversion=6.0.0; version=6.0.1; version=6.0.2; version=6.0.3

Published CVSS scores

3.5VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
5.1VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
3.5VulDB CNACVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDB CNAAV:N/AC:L/Au:S/C:N/I:P/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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