CVE-2022-22760

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

When importing resources using Web Workers, error messages would distinguish the difference between <code>application/javascript</code> responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-209

Affected software

Vendor	Product	Versions
Mozilla	Firefox	>= unspecified, < 97
Mozilla	Thunderbird	>= unspecified, < 91.6
Mozilla	Firefox ESR	>= unspecified, < 91.6

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1740985Issue Tracking, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1748503Issue Tracking, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-04/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-05/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-06/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1740985Issue Tracking, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1748503Issue Tracking, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-04/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-05/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-06/Vendor Advisory

Timeline

Published: Dec 22, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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