Home/CVE/XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 when View Source mode or Reader mode is used,
CVE

CVE-2021-45087

XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 when View Source mode or Reader mode is used,

XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 when View Source mode or Reader mode is used, as demonstrated by a page title.

MEDIUM · CVSS 6.1 EPSS 0.00288
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

3
gnome epiphany< 40.4
gnome epiphany>= 41.0 and < 41.1
debian linuxall versions
⚠

Public Exploits & PoCs

1
pocgitlab.gnome.org · 1612gitlab.gnome.org
▣

Scoring & Timeline

6.1
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Dec 2021 · 03:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
⚑

Vendor Advisories

1
usnUSN-5561-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://gitlab.gnome.org/GNOME/epiphany/-/merge_requests/1045PatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00006.htmlMailing ListThird Party Advisory
https://www.debian.org/security/2022/dsa-5042Third Party Advisory
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