CVE-2026-105409

Stored Cross-site Scripting (XSS) vulnerability affecting Tuleap Enterprise Edition from 17.0 through 17.5

CVSS score

8.7

EPSS probability

—

Risk score

0.9

Published

9 h ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

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Impact on My Inventory

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

Tuleap Enterprise Edition Stored Cross-site Scripting (XSS) Vulnerability

Sources read

Source agreement

Tam uyum

Evidence confidence

%63

Short explanation

A Stored Cross-site Scripting (XSS) vulnerability affecting Tuleap Enterprise Edition versions allows an attacker to execute arbitrary script code in a user's browser session [S0].

Why does it matter?

This vulnerability features a high CVSS score, enabling attackers to target user browser sessions [S0].

What should be done?

Follow the vendor advisory [S0].

Chain of evidence and sources2 verified claims

Tuleap Enterprise Edition 17.0 - 17.5 sürümleri Saklı Siteler Arası Betik Çalıştırma (XSS) zafiyetinden etkilenmektedir.

S0 · daybreach-canonical

Zafiyet, saldırganın kullanıcı oturumunda rastgele betik kodu çalıştırmasına olanak tanıyabilir.

S0 · daybreach-canonical

Show the technical text from the sources

A Stored Cross-site Scripting (XSS) vulnerability affecting Tuleap Enterprise Edition from 17.0 through 17.5 could allow an attacker to execute arbitrary script code in user's browser session.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CWE: CWE-79

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-105409 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	Dassault Systèmes	Tuleap Enterprise Edition	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
8.7	CVSS V31	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N	NVD
8.7	CVSS V3_1	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N	CVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-105409 is associated with the following CWEs:

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-105409 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsLow

UserGerekiyor

Official Sources and Advisories

https://www.3ds.com/trust-center/security/security-advisories/cve-2026-105409vendor-advisory

CVSS Vector Radar Chart

8.7 / 10

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow privileges

User Interaction—

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)High

Availability (Erişilebilirlik)None

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

Dassault Systèmes

Weakness Type (CWE & CAPEC)

CWE-79

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