XSS in Gnome Epiphany

CVE-2021-45088

XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 via an error page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.014 (69.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Gnome Epiphany
Debian Debian_linux — versions 10.0, 11.0
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Exploit, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2021-45088?: CVE-2021-45088 is a medium-severity vulnerability in Gnome Epiphany, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-12-16.
How severe is CVE-2021-45088?: Medium severity. CVSS v3 base score is 6.1 out of 10.