What is CVE-2018-11101?

CVE-2018-11101 is a medium-severity vulnerability in Signal Signal-desktop, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-05-17.

How severe is CVE-2018-11101?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2018-11101 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Signal Signal-desktop

CVE-2018-11101

Open Whisper Signal (aka Signal-Desktop) through 1.10.1 allows XSS via a resource location specified in an attribute of a SCRIPT, IFRAME, or IMG element, leading to JavaScript execution after a reply, a different vulnerability than CVE-201…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.015 (70.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Signal Signal-desktop
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

cve@mitre.org (mailing-list, Patch, x_refsource_FULLDISC, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2018-11101?: CVE-2018-11101 is a medium-severity vulnerability in Signal Signal-desktop, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-05-17.
How severe is CVE-2018-11101?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-11101 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.