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Vulnerability details: VCID-zxhy-6uab-3ycb
Vulnerability ID VCID-zxhy-6uab-3ycb
Aliases CVE-2023-23603
Summary Regular expressions used to filter out forbidden properties and values from style directives in calls to console.log weren't accounting for external URLs. Data could then be potentially exfiltrated from the browser.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-185 Incorrect Regular Expression
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-23603.json
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2023-23603
cvssv3.1 6.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1800832
ssvc Track https://bugzilla.mozilla.org/show_bug.cgi?id=1800832
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2023-23603
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2023-01
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2023-02
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2023-03
cvssv3.1 6.5 https://www.mozilla.org/security/advisories/mfsa2023-01/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2023-01/
cvssv3.1 6.5 https://www.mozilla.org/security/advisories/mfsa2023-02/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2023-02/
cvssv3.1 6.5 https://www.mozilla.org/security/advisories/mfsa2023-03/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2023-03/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-23603.json
https://api.first.org/data/v1/epss?cve=CVE-2023-23603
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-46871
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-46877
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0430
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0616
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0767
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-23598
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-23601
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-23602
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-23603
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-23605
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25728
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25729
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25730
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25732
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25735
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25737
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25739
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25742
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25744
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25746
2162343 https://bugzilla.redhat.com/show_bug.cgi?id=2162343
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-2023-23603 https://nvd.nist.gov/vuln/detail/CVE-2023-23603
mfsa2023-01 https://www.mozilla.org/en-US/security/advisories/mfsa2023-01
mfsa2023-01 https://www.mozilla.org/security/advisories/mfsa2023-01/
mfsa2023-02 https://www.mozilla.org/en-US/security/advisories/mfsa2023-02
mfsa2023-02 https://www.mozilla.org/security/advisories/mfsa2023-02/
mfsa2023-03 https://www.mozilla.org/en-US/security/advisories/mfsa2023-03
mfsa2023-03 https://www.mozilla.org/security/advisories/mfsa2023-03/
RHSA-2023:0285 https://access.redhat.com/errata/RHSA-2023:0285
RHSA-2023:0286 https://access.redhat.com/errata/RHSA-2023:0286
RHSA-2023:0288 https://access.redhat.com/errata/RHSA-2023:0288
RHSA-2023:0289 https://access.redhat.com/errata/RHSA-2023:0289
RHSA-2023:0290 https://access.redhat.com/errata/RHSA-2023:0290
RHSA-2023:0294 https://access.redhat.com/errata/RHSA-2023:0294
RHSA-2023:0295 https://access.redhat.com/errata/RHSA-2023:0295
RHSA-2023:0296 https://access.redhat.com/errata/RHSA-2023:0296
RHSA-2023:0456 https://access.redhat.com/errata/RHSA-2023:0456
RHSA-2023:0457 https://access.redhat.com/errata/RHSA-2023:0457
RHSA-2023:0459 https://access.redhat.com/errata/RHSA-2023:0459
RHSA-2023:0460 https://access.redhat.com/errata/RHSA-2023:0460
RHSA-2023:0461 https://access.redhat.com/errata/RHSA-2023:0461
RHSA-2023:0462 https://access.redhat.com/errata/RHSA-2023:0462
RHSA-2023:0463 https://access.redhat.com/errata/RHSA-2023:0463
RHSA-2023:0476 https://access.redhat.com/errata/RHSA-2023:0476
show_bug.cgi?id=1800832 https://bugzilla.mozilla.org/show_bug.cgi?id=1800832
USN-5816-1 https://usn.ubuntu.com/5816-1/
USN-5824-1 https://usn.ubuntu.com/5824-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-23603.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: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://bugzilla.mozilla.org/show_bug.cgi?id=1800832
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-10T18:09:19Z/ Found at https://bugzilla.mozilla.org/show_bug.cgi?id=1800832
Vector: CVSS:3.1/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-2023-23603
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: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://www.mozilla.org/security/advisories/mfsa2023-01/
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-10T18:09:19Z/ Found at https://www.mozilla.org/security/advisories/mfsa2023-01/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://www.mozilla.org/security/advisories/mfsa2023-02/
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-10T18:09:19Z/ Found at https://www.mozilla.org/security/advisories/mfsa2023-02/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://www.mozilla.org/security/advisories/mfsa2023-03/
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-10T18:09:19Z/ Found at https://www.mozilla.org/security/advisories/mfsa2023-03/
Exploit Prediction Scoring System (EPSS)
Percentile 0.37622
EPSS Score 0.0016
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:33.004035+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2023/mfsa2023-02.yml 37.0.0