CVE-2025-12799 - Vulnerability Details - OpenCVE

A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting (XSS) attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Vendors	Products
Redhat	Jboss Enterprise Application Platform Jbosseapxp Red Hat Single Sign On

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References

Link	Providers
https://access.redhat.com/security/cve/CVE-2025-12799
https://bugzilla.redhat.com/show_bug.cgi?id=2413071

History

Tue, 07 Jul 2026 16:45:00 +0000

Type	Values Removed	Values Added
Description		A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting (XSS) attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling.
Title		Jastow: jastow cross-site scripting attack due to unsanitized uri
First Time appeared		Redhat Redhat jboss Enterprise Application Platform Redhat jbosseapxp Redhat red Hat Single Sign On
Weaknesses		CWE-79
CPEs		cpe:/a:redhat:jboss_enterprise_application_platform:7 cpe:/a:redhat:jboss_enterprise_application_platform:8 cpe:/a:redhat:jbosseapxp cpe:/a:redhat:red_hat_single_sign_on:7
Vendors & Products		Redhat Redhat jboss Enterprise Application Platform Redhat jbosseapxp Redhat red Hat Single Sign On
References		https://access.redhat.com/security/cve/CVE-2025-12799 https://bugzilla.redhat.com/show_bug.cgi?id=2413071
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N'}`

MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-07-07T16:18:57.555Z

Updated: 2026-07-07T16:18:57.555Z

Reserved: 2025-11-06T11:15:12.378Z

Link: CVE-2025-12799

Vulnrichment

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NVD

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Redhat

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OpenCVE Enrichment

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