Cross-site scripting in Microsoft SharePoint Server - CVE-2018-8518

Vulnerability identifier: #VU15245

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]

CVE-ID: CVE-2018-8518

CWE-ID: CWE-79

Exploitation vector: Remote access

Exploit availability: No public exploit available

The disclosed vulnerability allows a remote authenticated attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Microsoft SharePoint Server
SUSE CaaS Platform
SUSE Enterprise Storage
HPE Helion Openstack
SUSE OpenStack Cloud
SUSE OpenStack Cloud Crowbar
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Software Development Kit
SUSE Linux Enterprise High Performance Computing
libjavascriptcoregtk-4_0-18-debuginfo
libjavascriptcoregtk-4_0-18
webkit2gtk3-devel
libwebkit2gtk3-lang
webkit2gtk3-debugsource
webkit2gtk-4_0-injected-bundles-debuginfo
webkit2gtk-4_0-injected-bundles
typelib-1_0-WebKit2WebExtension-4_0
typelib-1_0-WebKit2-4_0
typelib-1_0-JavaScriptCore-4_0
libwebkit2gtk-4_0-37-debuginfo
libwebkit2gtk-4_0-37

Install updates from vendor's website.

libjavascriptcoregtk-4_0-18-debuginfo - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1
libjavascriptcoregtk-4_0-18 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1
webkit2gtk3-devel - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1
libwebkit2gtk3-lang - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1
webkit2gtk3-debugsource - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1
webkit2gtk-4_0-injected-bundles-debuginfo - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1
webkit2gtk-4_0-injected-bundles - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1
typelib-1_0-WebKit2WebExtension-4_0 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1
typelib-1_0-WebKit2-4_0 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1
typelib-1_0-JavaScriptCore-4_0 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1
libwebkit2gtk-4_0-37-debuginfo - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1
libwebkit2gtk-4_0-37 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8518

• Cross-site scripting vulnerabilities in Microsoft SharePoint Server
• SUSE update for webkit2gtk3
• SUSE update for webkit2gtk3