Yoast SEO <= 5.7.1 - Reflected Cross-Site Scripting

2017-11-22 00:00

Elias Dimopoulos

Strategic Overview

Status

Patched in 5.8.0

Affected PluginYoast SEO – Advanced SEO with real-time guidance and built-in AI

Affected Version<= 5.7.1

CVSS6.1Medium

CVECVE-2017-16842

View all Yoast SEO – Advanced SEO with real-time guidance and built-in AI vulnerabilities

Vulnerability Overview

Cross-site scripting (XSS) vulnerability in admin/google_search_console/class-gsc-table.php in the Yoast SEO plugin before 5.8.0 for WordPress allows remote attackers to inject arbitrary web script or HTML.

Technical Analysis

REMEDIATION: Update to version 5.8.0, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2017-16842 https://www.wordfence.com/threat-intel/vulnerabilities/id/fbc393a6-8357-47b2-9abd-aa611b09eb1c

CVSS Vector

6.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/