CVE-2023-5732

Address bar spoofing via bidirectional characters

EPSS 1.0%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 1.0%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

24 Oct 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1690979 https://bugzilla.mozilla.org/show_bug.cgi?id=1836962 https://lists.debian.org/debian-lts-announce/2023/10/msg00037.html https://lists.debian.org/debian-lts-announce/2023/10/msg00042.html https://www.debian.org/security/2023/dsa-5535 https://www.debian.org/security/2023/dsa-5538 https://www.mozilla.org/security/advisories/mfsa2023-34/https://www.mozilla.org/security/advisories/mfsa2023-46/https://www.mozilla.org/security/advisories/mfsa2023-47/