CVE-2025-12799

mediumpriority · track · 0EPSS 0.004 · 35 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.41% (35th) EPSS

CVSS 6.5 · medium

Is it mine?

212 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:Nsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:Nsecondary · secalert@redhat.com USexploitability 2.2 · impact 4.2

v3.16mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79US

affected products (212)

Products and version ranges known to be affected.

Red Hat JBoss Enterprise Application Platform 8.1.7all versionscert_bundDEcpe:/a:redhat:jboss_enterprise_application_platform:8.1.7
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:0.1.0-2.redhat_00010.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:0.1.10-1.Final_redhat_00001.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:0.10.0-2.redhat_00001.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:0.8.12-1.redhat_00001.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:0.9.6-2.redhat_00002.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1-9.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.0.0-1.Final_redhat_00001.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.0.0-2.Final_redhat_1.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.0.0-3.redhat_00009.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.0.1-1.Final_redhat_3.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.0.1-3.redhat_00003.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.0.1-4.Final_redhat_00002.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.0.13-4.redhat_5.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.0.3-1.redhat_00001.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.0.4-4.redhat_00005.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.1.0-1.Final_redhat_00001.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.1.0-4.redhat_00007.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.1.1-1.Final_redhat_00001.1.el10eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10< 0:1.1.3-2.redhat_00002.1.el10eapenisa_euvdEU

showing 20 of 212

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2227Red Hat JBoss Enterprise Application Platform (io.undertow.jastow): Schwachstelle ermöglicht Cross-Site ScriptingDeutsch2026-07-07csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat JBoss Enterprise Application Platform ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2026-07-07modified 2026-07-29

references (17)

External citations — patches, advisories, analysis.

scry

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