CVE-2019-8674 — webkitgtk: Incorrect state management leading to universal cross-site scripting

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MEDIUM

webkitgtk: Incorrect state management leading to universal cross-site scripting

Published Dec 18, 2019

6.1

MEDIUM

CVSS 3.1

EPSS 1.01%

Description

A logic issue was addressed with improved state management. This issue is fixed in iOS 13, Safari 13. Processing maliciously crafted web content may lead to universal cross site scripting.

Affected products

Vendor Apple Product Safari Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <Safari 13
Vendor Apple Product iOS Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <iOS 13

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Apple

Safari

n/a

Version	Status	Constraints
unspecified	affected	<Safari 13

Apple

iOS

n/a

Version	Status	Constraints
unspecified	affected	<iOS 13

Red Hat Enterprise Linux 7

webkitgtk4-0:2.28.2-2.el7

Fixed · RHSA-2020:4035
Red Hat Enterprise Linux 8

webkit2gtk3-0:2.24.4-2.el8_1

Fixed · RHEA-2019:4262
Red Hat Enterprise Linux 6

webkitgtk

Out of support scope
Red Hat Enterprise Linux 7

webkitgtk3

Will not fix

Product	Package	State	Advisory
Red Hat Enterprise Linux 7	webkitgtk4-0:2.28.2-2.el7	Fixed	RHSA-2020:4035
Red Hat Enterprise Linux 8	webkit2gtk3-0:2.24.4-2.el8_1	Fixed	RHEA-2019:4262
Red Hat Enterprise Linux 6	webkitgtk	Out of support scope	n/a
Red Hat Enterprise Linux 7	webkitgtk3	Will not fix	n/a

Remediation

No remediation recorded yet.

Metrics

1.01% 0.01014

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.01014

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (11 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 2, 2026	1.01% (0.01014)	61.99th	v5 (v2026.06.15)
Sep 20, 2026	1.01% (0.01014)	61.74th	v5 (v2026.06.15)
Jul 20, 2024	0.24% (0.00244)	64.92th	v3 (v2023.03.01)
Apr 15, 2024	0.24% (0.00244)	64.10th	v3 (v2023.03.01)
Oct 22, 2023	0.24% (0.00244)	62.10th	v3 (v2023.03.01)
Mar 7, 2023	0.18% (0.00177)	53.04th	v3 (v2023.03.01)
Mar 6, 2023	0.95% (0.00954)	36.37th	v2 (v2022.01.01)
Apr 1, 2022	0.95% (0.00954)	32.50th	v2 (v2022.01.01)
Feb 4, 2022	11.37% (0.11374)	88.74th	v2 (v2022.01.01)
Feb 3, 2022	0.58% (0.00582)	13.29th	v5 (v2026.06.15)
Apr 14, 2021	0.13% (0.00130)	0.00th	v1

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (8)

https://access.redhat.com/security/cve/CVE-2019-8674
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1876608
Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2019-8674
https://security.gentoo.org/glsa/202003-22
vendor-advisoryx_refsource_GENTOOThird Party Advisory
https://support.apple.com/HT210606
x_refsource_MISCVendor Advisory
https://support.apple.com/HT210608
x_refsource_MISCVendor Advisory
https://webkitgtk.org/security/WSA-2019-0005.html
https://www.cve.org/CVERecord?id=CVE-2019-8674

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2019-8674		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1876608		Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2019-8674
https://security.gentoo.org/glsa/202003-22		vendor-advisoryx_refsource_GENTOOThird Party Advisory
https://support.apple.com/HT210606		x_refsource_MISCVendor Advisory
https://support.apple.com/HT210608		x_refsource_MISCVendor Advisory
https://webkitgtk.org/security/WSA-2019-0005.html
https://www.cve.org/CVERecord?id=CVE-2019-8674