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Vulnerability details: VCID-yzxw-y3z5-abeu
Vulnerability ID VCID-yzxw-y3z5-abeu
Aliases CVE-2017-5393
Summary The mozAddonManager allows for the installation of extensions from the CDN for addons.mozilla.org, a publicly accessible site. This could allow malicious extensions to install additional extensions from the CDN in combination with an XSS attack on Mozilla AMO sites.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
System Score Found at
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
epss 0.00466 https://api.first.org/data/v1/epss?cve=CVE-2017-5393
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2017-5393
cvssv3 6.1 https://nvd.nist.gov/vuln/detail/CVE-2017-5393
archlinux Critical https://security.archlinux.org/AVG-157
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-01
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2017-5393
https://bugzilla.mozilla.org/show_bug.cgi?id=1309282
https://www.mozilla.org/security/advisories/mfsa2017-01/
http://www.securityfocus.com/bid/95763
http://www.securitytracker.com/id/1037693
ASA-201701-39 https://security.archlinux.org/ASA-201701-39
AVG-157 https://security.archlinux.org/AVG-157
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
CVE-2017-5393 https://nvd.nist.gov/vuln/detail/CVE-2017-5393
mfsa2017-01 https://www.mozilla.org/en-US/security/advisories/mfsa2017-01
USN-3175-1 https://usn.ubuntu.com/3175-1/
No exploits are available.
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-5393
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-5393
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.6342
EPSS Score 0.00466
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:22.670107+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2017/mfsa2017-01.yml 37.0.0