Vulnerability Description
The TalkJS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 0.1.15 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/talkjs/tags/0.1.15/classes/admin/ui/F
- https://plugins.trac.wordpress.org/browser/talkjs/tags/0.1.15/classes/admin/ui/S
- https://plugins.trac.wordpress.org/browser/talkjs/trunk/classes/admin/ui/FieldBu
- https://plugins.trac.wordpress.org/browser/talkjs/trunk/classes/admin/ui/Setting
- https://plugins.trac.wordpress.org/changeset/3465226/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f91ed211-9703-44fb-a2f
FAQ
What is CVE-2026-1055?
CVE-2026-1055 is a vulnerability with a CVSS score of 4.4 (MEDIUM). The TalkJS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 0.1.15 due to insufficient input sanitization and output escaping....
How severe is CVE-2026-1055?
CVE-2026-1055 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-1055?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.