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Public proof of conceptFix available

CVE-2017-5415

A public proof of concept exists; no exploitation attested.

  • Published2018-06-11
  • Fixed in52.0
  • WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2017-04-14Exploit-DB entryExploit-DB
  2. 2018-06-1121:29CVE publishedNVD

Versions per branch

NVD
Mozilla firefox
BranchAffectedFixed in
52.0< 52.052.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • firefoxUbuntu:16.04:LTSall versions · fixed in 52.0+build2-0ubuntu0.16.04.1
  • firefoxUbuntu:14.04:LTSall versions · fixed in 52.0+build2-0ubuntu0.14.04.1
  • firefox-esropenSUSE:Tumbleweedall versions · fixed in 128.5.1-1.1
  • iceapeMageia:6all versions · fixed in 2.49.1-3.mga6
  • iceapeMageia:5all versions · fixed in 2.49.1-3.mga5
  • MozillaFirefoxopenSUSE:Tumbleweedall versions · fixed in 92.0-1.2

Full record on NVD

Fix

  1. Update Mozilla firefox to 52.0

Advisories and patches

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-44266
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Published
2018-06-11
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-xmh3-55xm-hpg9

Frequently asked questions

What is CVE-2017-5415?

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.

Is CVE-2017-5415 actively exploited?

Active exploitation of CVE-2017-5415 has not been confirmed. Its EPSS score was 12.3% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-5415?

CVE-2017-5415 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

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Sources for this record