CVE-2023-29545

Description

Similar to CVE-2023-28163, this time when choosing 'Save Link As', suggested filenames containing environment variable names would have resolved those in the context of the current user. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.

6.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.19%

Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org

Affected: Mozilla Firefox

Affected: Mozilla Firefox ESR

Affected: Mozilla Thunderbird

References

Link	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1823077	permissions required
https://www.mozilla.org/security/advisories/mfsa2023-13/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-14/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-15/	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-29545?: CVE-2023-29545 has been scored as a medium severity vulnerability.
How to fix CVE-2023-29545?: To fix CVE-2023-29545, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-29545 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-29545 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-29545?: CVE-2023-29545 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.

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