CVE-2025-8032: XSLT documents could bypass CSP

Published Jul 22, 2025
·
Updated

XSLT document loading did not correctly propagate the source document which bypassed its CSP.

Affected Software

12 affected componentsFixes available
Mozilla Firefox<141
141
Mozilla Firefox ESR<128.13
128.13
Mozilla Firefox ESR<140.1
140.1
Mozilla Thunderbird<128.13
128.13
Mozilla Thunderbird<141
141
Mozilla Thunderbird<140.1
140.1
Mozilla Firefox<128.13.0
Mozilla Firefox<141.0
Mozilla Firefox>=140.0<140.1.0
Mozilla Thunderbird<128.13.0
Mozilla Thunderbird<141.0
Mozilla Thunderbird>=140.0<140.1.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 128.13
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 140.1
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 141
  4. Upgrade

    Upgrade Mozilla Firefox to a version that resolves this vulnerability.

    Fixed in 141
  5. Upgrade

    Upgrade Mozilla Firefox ESR to a version that resolves this vulnerability.

    Fixed in 128.13
  6. Upgrade

    Upgrade Mozilla Firefox ESR to a version that resolves this vulnerability.

    Fixed in 140.1
  7. Upgrade

    Upgrade Mozilla Thunderbird to a version that resolves this vulnerability.

    Fixed in 141
  8. Upgrade

    Upgrade Mozilla Thunderbird to a version that resolves this vulnerability.

    Fixed in 128.13
  9. Upgrade

    Upgrade Mozilla Thunderbird to a version that resolves this vulnerability.

    Fixed in 140.1

Event History

Jul 22, 2025
CVE Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Updated
via Mozilla·12:00 AM
Affected Software
CVE Published
via MITRE·08:49 PM
Data Sourced
via MITRE·08:49 PM
Description
Data Sourced
via Red Hat·09:02 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·09:15 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2025-8032?

CVE-2025-8032 is classified as a moderate severity vulnerability.

2

How do I fix CVE-2025-8032?

To fix CVE-2025-8032, users should update Mozilla Firefox to version 141 or later, or Firefox ESR to versions 129.0 or later.

3

Who is affected by CVE-2025-8032?

CVE-2025-8032 affects users of Mozilla Firefox versions prior to 141 and Firefox ESR prior to 128.13 and 140.1.

4

What type of vulnerability is CVE-2025-8032?

CVE-2025-8032 is a cross-site scripting vulnerability related to XSLT document loading.

5

Does CVE-2025-8032 allow for a bypass of security restrictions?

Yes, CVE-2025-8032 allows attackers to bypass content security policy (CSP) protections.

Contact

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