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Vulnerability details: VCID-zuc8-pdg7-aaab
Vulnerability ID VCID-zuc8-pdg7-aaab
Aliases CVE-2018-18499
Summary A same-origin policy violation allowing the theft of cross-origin URL entries when using a meta http-equiv="refresh" on a page to cause a redirection to another site using performance.getEntries(). This is a same-origin policy violation and could allow for data theft. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-18499.html
rhas Critical https://access.redhat.com/errata/RHSA-2018:2692
rhas Critical https://access.redhat.com/errata/RHSA-2018:2693
rhas Important https://access.redhat.com/errata/RHSA-2018:3403
rhas Important https://access.redhat.com/errata/RHSA-2018:3458
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-18499.json
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.001 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00174 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
epss 0.00231 https://api.first.org/data/v1/epss?cve=CVE-2018-18499
generic_textual Medium https://bugzilla.mozilla.org/show_bug.cgi?id=1468523
rhbs high https://bugzilla.redhat.com/show_bug.cgi?id=1849971
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16541
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12376
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12377
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12378
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12383
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12385
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18499
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2018-18499
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2018-18499
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-20
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2018-20/#CVE-2018-18499
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-21
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2018-21/#CVE-2018-18499
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-25
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2018-25/#CVE-2018-18499
generic_textual Medium https://www.mozilla.org/security/advisories/mfsa2018-20/
generic_textual Medium https://www.mozilla.org/security/advisories/mfsa2018-21/
generic_textual Medium https://www.mozilla.org/security/advisories/mfsa2018-25/
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-18499.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-18499.json
https://api.first.org/data/v1/epss?cve=CVE-2018-18499
https://bugzilla.mozilla.org/show_bug.cgi?id=1468523
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16541
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12376
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12377
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12378
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12379
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12383
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12385
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18499
https://www.mozilla.org/en-US/security/advisories/mfsa2018-20/#CVE-2018-18499
https://www.mozilla.org/en-US/security/advisories/mfsa2018-21/#CVE-2018-18499
https://www.mozilla.org/en-US/security/advisories/mfsa2018-25/#CVE-2018-18499
https://www.mozilla.org/security/advisories/mfsa2018-20/
https://www.mozilla.org/security/advisories/mfsa2018-21/
https://www.mozilla.org/security/advisories/mfsa2018-25/
1849971 https://bugzilla.redhat.com/show_bug.cgi?id=1849971
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:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
CVE-2018-18499 https://nvd.nist.gov/vuln/detail/CVE-2018-18499
mfsa2018-20 https://www.mozilla.org/en-US/security/advisories/mfsa2018-20
mfsa2018-21 https://www.mozilla.org/en-US/security/advisories/mfsa2018-21
mfsa2018-25 https://www.mozilla.org/en-US/security/advisories/mfsa2018-25
RHSA-2018:2692 https://access.redhat.com/errata/RHSA-2018:2692
RHSA-2018:2693 https://access.redhat.com/errata/RHSA-2018:2693
RHSA-2018:3403 https://access.redhat.com/errata/RHSA-2018:3403
RHSA-2018:3458 https://access.redhat.com/errata/RHSA-2018:3458
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-18499.json
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

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-18499
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:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-18499
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 0.28901
EPSS Score 0.001
Published At May 10, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.