CVE-2019-6251

Exp

WebKitGTK and WPE WebKit prior to version 2.24.1 are vulnerable to address bar spoofing upon certain JavaScript redirections. An attacker could cause malicious web content to be displayed as if for a trusted URI. This is similar to the CVE-2018-8383 issue in Microsoft Edge.

Published: 2019-01-14 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-6251 is rated High Exploit Risk (77/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.45%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-6251

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-6251

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-15 2.49% 2.45% -0.04%
2 2025-11-21 2.17% 2.49% +0.32%
3 2025-11-18 — 2.17% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-6251

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 5.2 [email protected]
5.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 4.9 [email protected]

Weakness enumeration for CVE-2019-6251

OS Trackers for CVE-2019-6251

vendor priority summary link
alpine high CVE-2019-6251: 1 source package rows (webkit2gtk); 5 state rows across 5 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, edge-community); fixed 5, open 0. https://security.alpinelinux.org/vuln/CVE-2019-6251
debian not yet assigned CVE-2019-6251 not yet assigned priority: Debian including 1 source packages (webkit2gtk), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-6251
gentoo normal CVE-2019-6251: 1 GLSA(s) (201909-05), 1 atom(s) (net-libs/webkit-gtk); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2019-6251
redhat medium — https://access.redhat.com/security/cve/CVE-2019-6251
ubuntu medium CVE-2019-6251 medium priority: Ubuntu including 1 source packages (webkit2gtk), 16 status rows across 16 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): not-affected 11, released 3, DNE 1, ignored 1. https://ubuntu.com/security/CVE-2019-6251

Affected software / configurations for CVE-2019-6251

Vendor Product Version Raw CPE
gnome epiphany <= 3.31.4 cpe:2.3:a:gnome:epiphany:*:*:*:*:*:*:*:*
webkitgtk webkitgtk < 2.24.1 cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*
wpewebkit wpe_webkit < 2.24.1 cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:*
fedoraproject fedora 28 cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*
fedoraproject fedora 29 cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
fedoraproject fedora 30 cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 18.10 cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
opensuse leap 15.0 cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
opensuse leap 42.3 cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*

References for CVE-2019-6251

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00025.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00031.html Third Party Advisory
http://packetstormsecurity.com/files/152485/WebKitGTK-WPE-WebKit-URI-Spoofing-Code-Execution.html Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2019/04/11/1 Mailing List Third Party Advisory
https://bugs.webkit.org/show_bug.cgi?id=194208 Issue Tracking Vendor Advisory
https://gitlab.gnome.org/GNOME/epiphany/issues/532 Exploit Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSCDI3635E37GL4BNJDRDT2KEUBDLGSO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LACVFU4MYYRPJ3IEA4UCN5KUEAGCCJ72/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNPI3R6QWDJBA5KNGA6QSMKYLY5RRHBZ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UO3DIA54X7FOUWFZW5YXC2MZ6KNHG6SW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YO5ZBUWOOXMVZPBYLZRDZF6ZQGBYJERQ/
https://seclists.org/bugtraq/2019/Apr/21 Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201909-05
https://trac.webkit.org/changeset/243434 Patch Vendor Advisory
https://usn.ubuntu.com/3948-1/ Third Party Advisory
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