CVE•Published 2025-07-22•Modified 2026-10-05•1 article on news•6 live references•NVD data
CVE-2025-8031Mozilla · Firefox
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
38
Exploit Prediction Scoring System · top 62% of all CVEs
Weaknesses (CWE)
Description
The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
Timeline
Published 2025-07-22
Modified 2026-10-05
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2025-8031Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Mozilla Firefox"All exposed Mozilla Firefox instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Firefox"HTTP body or banner mentions "Firefox" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2025-8031Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-8031Censys host search filtered to this CVE id.
grep.app
CVE-2025-8031Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-8031GitHub code search for direct mentions.
Google dork
"CVE-2025-8031" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.