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TI-2019-08762 Aliases CVE-2019-11701GHSA-frqr-7x7p-q8jj

Cross-site scripting in Mozilla Firefox

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

The default webcal: protocol handler will load a web site vulnerable to cross-site scripting (XSS) attacks. This default was left in place as a legacy feature and has now been removed. *Note: this issue only affects users with an account on the vulnerable service. Other users are unaffected.*. This vulnerability affects Firefox < 67.

Why it matters now

EPSS 0.00642 51st percentileScored 2026-11-07
Fix Fixed Firefox (Mozilla): 67

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 6767Patch availableCNA
  • Firefox VendorMozilla Affected before 67 Fixed in 67 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 67.0VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 67.0 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 67

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 67

    20 records Highest priority Priority MEDIUM 7 MEDIUM, 13 LOW

    Other records, highest priority first

    • TI-2019-08754 Out-of-bounds write in Mozilla ThunderbirdPriority MEDIUM 47
    • TI-2019-07186 Out-of-bounds write in Mozilla ThunderbirdPriority MEDIUM 46
    • TI-2019-08753 Use after free in Mozilla ThunderbirdPriority MEDIUM 45
    Show all 20 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-11701
  2. 2026-10-03 Alias added: GHSA-frqr-7x7p-q8jj
  3. 2026-10-21 EPSS moved to the 50th–90th percentile

References

Advisory 2

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences