CVE-2023-39521

Tuleap vulnerable to Cross-site Scripting on the success message of a kanban deletion

MEDIUM
4.8
CVSS Score
Published: August 24, 2023 at 10:40 PM UTC
Updated: June 17, 2026 at 06:12 AM UTC
1 product affected across 1 vendorTuleap

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Severity
MEDIUM4.8
Exploit prediction
EPSS 0.6%
SSVC
PoC

Description

Tuleap is an open source suite to improve management of software developments and collaboration. In Tuleap Community Edition prior to version 14.11.99.28 and Tuleap Enterprise Edition prior to versions 14.10-6 and 14.11-3, content displayed in the "card fields" (visible in the kanban and PV2 apps) is not properly escaped. An agile dashboard administrator deleting a kanban with a malicious label can be forced to execute uncontrolled code. Tuleap Community Edition 14.11.99.28, Tuleap Enterprise Edition 14.10-6, and Tuleap Enterprise Edition 14.11-3 contain a fix for this issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 14.10-6v < 14.10-7v < 14.11-3v < 14.11.99.28v < 14.11.99.8214.11 ≤ v < 14.11-5
Affected range stops below 14.10-6, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.10-7, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.11-3, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.11-5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.11.99.28, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.11.99.82, so it looks safe — our inference, not a vendor statement

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.8MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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