CVE-2023-5732
MEDIUMCVSS 6.5/10EPSS 0.96%
Last modified
CVE-2023-5732 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An attacker could have created a malicious link using bidirectional characters to spoof the location in the address bar when visited. This vulnerability affects Firefox < 117, Firefox ESR < 115.4, and Thunderbird < 115.4.1.. EPSS estimates a 0.96% chance of exploitation in the next 30 days.
Description
An attacker could have created a malicious link using bidirectional characters to spoof the location in the address bar when visited. This vulnerability affects Firefox < 117, Firefox ESR < 115.4, and Thunderbird < 115.4.1.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 117.0 |
| Mozilla | Firefox Esr | < 115.4.1 |
| Mozilla | Thunderbird | < 115.4.1 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1690979Issue Tracking, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1836962Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00037.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00042.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2023/dsa-5535Mailing List, Third Party Advisory
- https://www.debian.org/security/2023/dsa-5538Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-34/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-46/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-47/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1690979Issue Tracking, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1836962Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00037.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00042.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2023/dsa-5535Mailing List, Third Party Advisory
- https://www.debian.org/security/2023/dsa-5538Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-34/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-46/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-47/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-5732?
An attacker could have created a malicious link using bidirectional characters to spoof the location in the address bar when visited. This vulnerability affects Firefox < 117, Firefox ESR < 115.4, and Thunderbird < 115.4.1.
How severe is CVE-2023-5732?
CVE-2023-5732 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.96% probability of exploitation in the next 30 days.
How do I fix CVE-2023-5732?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-5732?
Run a free Strix scan to check your systems for this vulnerability.
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