Published:2018/12/25  Last Updated:2018/12/25

JVN#27052429
WordPress plugin "Google XML Sitemaps" vulnerable to cross-site scripting

Overview

The WordPress plugin "Google XML Sitemaps" contains a cross-site scripting vulnerability.

Products Affected

  • Google XML Sitemaps Version 4.0.9 and earlier

Description

The WordPress plugin "Google XML Sitemaps" provided by Arne Brachhold contains a stored cross-site scripting vulnerability (CWE-79).

Impact

In the case where multiple administrators manage the WordPress site with the affected plugin, an administrator with malicious intent may embed an arbitrary script into the plugin settings page. The embedded script may be executed when another administrator logs in and browses the page.

Solution

Update the plugin
Update the plugin according to the information provided by the developer.

Vendor Status

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

CVSS v3 CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Base Score: 4.8
Attack Vector(AV) Physical (P) Local (L) Adjacent (A) Network (N)
Attack Complexity(AC) High (H) Low (L)
Privileges Required(PR) High (H) Low (L) None (N)
User Interaction(UI) Required (R) None (N)
Scope(S) Unchanged (U) Changed (C)
Confidentiality Impact(C) None (N) Low (L) High (H)
Integrity Impact(I) None (N) Low (L) High (H)
Availability Impact(A) None (N) Low (L) High (H)
CVSS v2 AV:N/AC:L/Au:S/C:N/I:P/A:N
Base Score: 4.0
Access Vector(AV) Local (L) Adjacent Network (A) Network (N)
Access Complexity(AC) High (H) Medium (M) Low (L)
Authentication(Au) Multiple (M) Single (S) None (N)
Confidentiality Impact(C) None (N) Partial (P) Complete (C)
Integrity Impact(I) None (N) Partial (P) Complete (C)
Availability Impact(A) None (N) Partial (P) Complete (C)

Credit

takagisan reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2018-16204
JVN iPedia JVNDB-2018-000135