WordPress Plugin Vulnerabilities

Blocksy Companion < 1.8.68 - Contributor+ Stored XSS

Description

The plugin does not validate and escape the class attribute of its blocksy_posts shortcode before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Affects Plugins

Plugin icon
blocksy-companion
Fixed in 1.8.68

References

CVE
CVE-2023-23898

Classification

Type
XSS
OWASP top 10
A7: Cross-Site Scripting (XSS)
CWE
CWE-79
CVSS
6.8 (medium)

Miscellaneous

Original Researcher
Rafshanzani Suhada
Verified
No
WPVDB ID
a11764cc-396f-44d8-8647-14a602af338d

Timeline

Publicly Published
2023-01-27 (about 3 years ago)
Added
2023-04-06 (about 2 years ago)
Last Updated
2023-04-06 (about 2 years ago)

Other

Published
Title
Published
2025-01-18
Title
Related Post Shortcode <= 1.2 - Authenticated (Administrator+) Stored Cross-Site Scripting
Published
2025-02-03
Title
Google Earth Embed <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting
Published
2021-06-17
Title
YOP Poll < 6.2.8 - Unauthenticated Stored Cross-Site Scripting
Published
2025-12-31
Title
Post Video Players <= 1.163 - Authenticated (Editor+) Stored Cross-Site Scripting
Published
2025-01-16
Title
Good Old Gallery <= 2.1.2 - Reflected Cross-Site Scripting