CVE-2025-8032

HIGH

Firefox <141, Firefox ESR <128.13, Firefox ESR <140.1, Thunderbird ...

Title source: llm

Description

XSLT document loading did not correctly propagate the source document which bypassed its CSP. This vulnerability affects Firefox < 141, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.

References (8)

[Mailing List] https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html

[Permissions Required] https://bugzilla.mozilla.org/show_bug.cgi?id=1974407

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2025-56/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2025-58/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2025-59/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2025-61/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2025-62/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2025-63/

Scores

CVSS v3 8.1

EPSS 0.0004

EPSS Percentile 13.5%

Attack Vector NETWORK

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

Classification

CWE

CWE-693

Status published

Affected Products (4)

mozilla/firefox < 128.13.0

mozilla/firefox < 141.0

mozilla/thunderbird < 128.13.0

mozilla/thunderbird < 141.0

Timeline

Published Jul 22, 2025

Tracked Since Feb 18, 2026