CVE-2017-9063

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer...

6.1 MediumFix available

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer exists, involving an invalid customization session.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

2.00%Up 0.3 points since Apr 14, 2021

What each source reports

NVD Score used 6.1

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer exists, involving an invalid customization session.

Record: CVE-2017-9063
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer exists, involving an invalid customization session.

Record: CVE-2017-9063
Updated: 2026-11-02

EUVDEUVD-2017-18002 No score

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer exists, involving an invalid customization session.

Record: EUVD-2017-18002
Updated: 2026-11-03

GitHub AdvisoriesGHSA-8c9g-j366-5fcx 6.1

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer...

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer exists, involving an invalid customization session.

Record: GHSA-8c9g-j366-5fcx
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV 6.1

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer exists, involving an invalid customization session.

Record: CVE-2017-9063
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2017-9063 6.1

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer exists, involving an invalid customization session.

Record: DEBIAN-CVE-2017-9063
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2017-9063 6.1

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer exists, involving an invalid customization session.

Record: UBUNTU-CVE-2017-9063
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`wordpress` Debian:12	before 4.7.5+dfsg-1	4.7.5+dfsg-1
`wordpress` Debian:13	before 4.7.5+dfsg-1	4.7.5+dfsg-1
`wordpress` Debian:14	before 4.7.5+dfsg-1	4.7.5+dfsg-1
`wordpress` Debian:7	before 3.6.1+dfsg-1~deb7u15, plus listed versions 3.5.1+dfsg-23.5.2+dfsg-13.5.2+dfsg-1~deb6u13.5.2+dfsg-1~deb7u13.6+dfsg-1 Show 22 moreShow less 3.6.1+dfsg-1~deb6u13.6.1+dfsg-1~deb6u23.6.1+dfsg-1~deb6u33.6.1+dfsg-1~deb6u43.6.1+dfsg-1~deb6u53.6.1+dfsg-1~deb6u63.6.1+dfsg-1~deb6u73.6.1+dfsg-1~deb6u83.6.1+dfsg-1~deb6u93.6.1+dfsg-1~deb7u13.6.1+dfsg-1~deb7u103.6.1+dfsg-1~deb7u113.6.1+dfsg-1~deb7u123.6.1+dfsg-1~deb7u133.6.1+dfsg-1~deb7u143.6.1+dfsg-1~deb7u23.6.1+dfsg-1~deb7u33.6.1+dfsg-1~deb7u43.6.1+dfsg-1~deb7u53.6.1+dfsg-1~deb7u63.6.1+dfsg-1~deb7u83.6.1+dfsg-1~deb7u9	3.6.1+dfsg-1~deb7u15
`wordpress` Debian:8	before 4.1+dfsg-1+deb8u14, plus listed versions 4.1+dfsg-14.1+dfsg-1+deb8u14.1+dfsg-1+deb8u104.1+dfsg-1+deb8u114.1+dfsg-1+deb8u12 Show 9 moreShow less 4.1+dfsg-1+deb8u134.1+dfsg-1+deb8u24.1+dfsg-1+deb8u34.1+dfsg-1+deb8u44.1+dfsg-1+deb8u54.1+dfsg-1+deb8u64.1+dfsg-1+deb8u74.1+dfsg-1+deb8u84.1+dfsg-1+deb8u9	4.1+dfsg-1+deb8u14
`wordpress` Ubuntu:16.04:LTS	All versions, plus listed versions 4.3+dfsg-14.3.1+dfsg-14.4+dfsg-14.4.1+dfsg-14.4.2+dfsg-14.4.2+dfsg-1ubuntu1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-9063 is a medium vulnerability (CVSS 6.1) in Wordpress, published May 18, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.00%, the 80th percentile. Fixed in wordpress 4.7.5+dfsg-1.

References

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