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Security Advisories

CVE-2025-5271

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-5271

Severity

6.5

Medium

CVSS V3

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Description

Previewing a response in Devtools ignored CSP headers, which could have allowed content injection attacks. This vulnerability affects Firefox < 139 and Thunderbird < 139.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2025-5271
  • https://github.com/advisories/GHSA-jc7v-r8h6-xr5c
  • https://www.mozilla.org/security/advisories/mfsa2025-42/
  • https://www.mozilla.org/security/advisories/mfsa2025-45/
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1920348

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