CVE-2025-8032: XSLT document loading did not correctly propagate the source document which bypassed its CSP
Source GCVE Database
Not known to be exploited · CVSS 8.1 High.
Data as of 29 Oct 2026, 22:52 UTC
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 22 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
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
- nvd.nist.gov/vuln/detail/CVE-2025-8032 (opens in a new tab)
- bugzilla.mozilla.org/show_bug.cgi?id=1974407 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/07/msg00016.html (opens in a new tab)
- mozilla.org/security/advisories/mfsa2025-56 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2025-58 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2025-59 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2025-61 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2025-62 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2025-63 (opens in a new tab)