An attack can use a blob URL and script to spoof an arbitrary addressbar URL prefaced by "blob:" as the protocol, leading to user confusion and further spoofing attacks. This vulnerability affects Firefox < 52.
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Score 5.3 from GitHub Security Advisory published 2022-05-14. NVD baseline CVSS 5.3; sources differ by 0.0.
An attack can use a blob URL and script to spoof an arbitrary addressbar URL prefaced by "blob:" as the protocol, leading to user confusion and further spoofing attacks. This vulnerability affects Firefox < 52.
June 11, 2018
November 21, 2024
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | firefox (52.0+build2-0ubuntu0.16.10.1) @ yakkety | 2026-05-28 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
Working exploit code is in the public domain (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
Mozilla Firefox - Address Bar Spoofing
Open source ↗Addressbar spoofing through blob URL (Firefox browser). An attack can use a blob URL and script to spoof an arbitrary addressbar URL prefaced by blob: as the protocol, leading to user confusion and further spoofing attacks.
Open source ↗See which npm, PyPI, Go, and Maven packages are affected by CVE-2017-5415
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ubuntu
CWE-20