CVE-2019-11701

critical

Published — · Modified —

CVSS v3

—

CVSS v2

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VIR risk

9.5

Description

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.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-11701

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-11701.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201905-9

OS impact

OS	Version	Status	Fixed in
arch		fixed	`67.0-1`
sles		affected
debian	sid	fixed	`67.0-2`

References

https://security.archlinux.org/ASA-201905-9
https://www.suse.com/security/cve/CVE-2019-11701.html
https://security-tracker.debian.org/tracker/CVE-2019-11701

Verify integrity in audit chain (admin only). AS-IS.