What’s Vulnerable › Vulnerabilities

CVE-2022-22755

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-12-22 · updated 2026-06-17
• Weakness: CWE-672

Description

By using XSL Transforms, a malicious webserver could have served a user an XSL document that would continue to execute JavaScript (within the bounds of the same-origin policy) even after the tab was closed. This vulnerability affects Firefox < 97.

Affected products

• Mozilla Firefox: before 97.0 — fixed in 97.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 97.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1309630
• https://www.mozilla.org/security/advisories/mfsa2022-04/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1309630
• https://www.mozilla.org/security/advisories/mfsa2022-04/

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