vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2022-22760

MEDIUM
6.5
CVSS Score
Published: December 22, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:28 AM UTC
3 products affected across 1 vendorFirefoxThunderbirdFirefox ESR

Using Firefox by Mozilla?

Get instant alerts when new vulnerabilities affect Firefox - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM6.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Firefox· Mozilla
95%
v < 97
Affected range stops below 97, so it looks safe — our inference, not a vendor statement
Affected range stops below 97.0, so it looks safe — our inference, not a vendor statement
Firefox ESR· Mozilla
95%
v < 91.6
Affected range stops below 91.6, so it looks safe — our inference, not a vendor statement
Thunderbird· Mozilla
95%
v < 91.6
Affected range stops below 91.6, so it looks safe — our inference, not a vendor statement

References (5)

Issue TrackingVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1740985
Issue TrackingVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1748503
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2022-04/
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2022-05/
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2022-06/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-209

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card