CVE-2024-1547

Name: CVE-2024-1547
Creator: NVD / NIST
Published: 2024-02-20T14:15:08.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2024-1547 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Through a series of API calls and redirects, an attacker-controlled alert dialog could have been displayed on another website (with the victim website's URL shown). This vulnerability affects Firefox < 123, Firefox ESR < 115.8, and Thunderbird < 115.8.. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

Through a series of API calls and redirects, an attacker-controlled alert dialog could have been displayed on another website (with the victim website's URL shown). This vulnerability affects Firefox < 123, Firefox ESR < 115.8, and Thunderbird < 115.8.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS Probability

0.67%

47.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-290

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 115.8.0
Mozilla	Firefox	< 123.0
Mozilla	Thunderbird	< 115.8.0
Debian	Debian Linux	10.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1877879Issue Tracking
https://lists.debian.org/debian-lts-announce/2024/03/msg00000.htmlMailing List
https://lists.debian.org/debian-lts-announce/2024/03/msg00001.htmlMailing List
https://www.mozilla.org/security/advisories/mfsa2024-05/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-06/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-07/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1877879Issue Tracking
https://lists.debian.org/debian-lts-announce/2024/03/msg00000.htmlMailing List
https://lists.debian.org/debian-lts-announce/2024/03/msg00001.htmlMailing List
https://www.mozilla.org/security/advisories/mfsa2024-05/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-06/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-07/Vendor Advisory

Timeline

Published: Feb 20, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-1547?

How severe is CVE-2024-1547?

CVE-2024-1547 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2024-1547?

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.

Are you affected by CVE-2024-1547?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST