CVE-2026-67196: Perspective 5.0.0 XSS via Debug Plugin innerHTML Interpolation
Perspective 5.0.0 contains a cross-site scripting vulnerability in the built-in Debug plugin that allows attackers to inject arbitrary HTML and JavaScript by writing table cell values containing unescaped HTML markup, which are interpolated directly into innerHTML during CSV serialization rendering. Attackers can craft table rows with payloads such as unquoted attribute injections containing event handler attributes that bypass RFC 4180 quoting, since angle brackets and event handler attributes are never escaped before assignment, causing malicious scripts to execute in the embedding page's origin.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-67196?
The severity of CVE-2026-67196 is medium with a score of 5.4.
How do I fix CVE-2026-67196?
To fix CVE-2026-67196, update the Perspective software to a version that addresses the cross-site scripting vulnerability.
What type of vulnerability is CVE-2026-67196?
CVE-2026-67196 is classified as a cross-site scripting (XSS) vulnerability.
What does CVE-2026-67196 allow attackers to do?
CVE-2026-67196 allows attackers to inject arbitrary HTML and JavaScript into web applications via unescaped HTML markup in table cell values.
In which version of the software does CVE-2026-67196 occur?
CVE-2026-67196 occurs in Perspective version 5.0.0.