CVE-2025-27099Public exploitNetwork attack vector

Stored XSS via unescaped tracker names

Published Mar 3, 2025 · Updated Mar 3, 2025

Stored XSS in Tuleap before 16.4.99.1740067916 allows remote authenticated users to execute script in tracker administrators' browsers. A semantic-timeframe deletion explanation inserts an unescaped source-tracker name when a field cannot be removed because another tracker inherits it. Exploitation requires a tracker administrator to save a crafted name and another tracker administrator to open the dependent field-administration page.

CVSS severity4.8
Medium
EPSS probability0.29%
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 Tuleap before 16.4.99.1740067916 allows remote authenticated users to execute script in tracker administrators' browsers. A semantic-timeframe deletion explanation inserts an unescaped source-tracker name when a field cannot be removed because another tracker inherits it. Exploitation requires a tracker administrator to save a crafted name and another tracker administrator to open the dependent field-administration page.

The record

CVE
CVE-2025-27099
Published
Mar 3, 2025
Updated
Mar 3, 2025
Vendor
Enalean
Product
Tuleap
Classifications
CWE-79, CWE-80, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 3, 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=< 16.4.99.1740067916

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Enalean · Tuleapversion=< 16.4.99.1740067916

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/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 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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
T1059.007JavaScript/JScript

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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