Medium severity · published Jun 2, 2023
CVE-2023-23603
Regular expressions used to filter out forbidden properties and values from style directives in calls to `console.log` weren't accounting for external URLs
6.5
CVSS
0.6%
EPSS
No
On KEV
Description
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. This vulnerability affects Firefox < 109, Firefox ESR < 102.7, and Thunderbird < 102.7.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 109.0 · source: NVD
FE
Firefox Esr · Mozilla
before 102.7 · source: NVD
TH
Thunderbird · Mozilla
before 102.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-23603
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-23603
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1800832
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-01/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-02/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-03/
More from Firefox
10.0
CVE-2019-11708
Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability
9.8
CVE-2024-9680
Mozilla Firefox Use-After-Free Vulnerability
9.8
CVE-2010-3765
Mozilla Multiple Products Remote Code Execution Vulnerability
9.6
CVE-2022-26486
Mozilla Firefox Use-After-Free Vulnerability
8.8
CVE-2023-5217
Google Chromium libvpx Heap Buffer Overflow Vulnerability