PT-2026-4602 · WordPress · Timeline Event History

Arkadiusz Hydzik · Published 2026-01-24 · Updated 2026-01-24 · CVE-2026-1127

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Timeline Event History plugin for WordPress versions through 3.2

Description The Timeline Event History plugin for WordPress is susceptible to Reflected Cross-Site Scripting through the id parameter. Insufficient input sanitization and output escaping allow unauthenticated attackers to inject arbitrary web scripts into pages. Successful exploitation requires tricking a user into performing an action, such as clicking a link. The vulnerable parameter is id.

Recommendations Update the Timeline Event History plugin to a version later than 3.2.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-1127

Affected Products

Timeline Event History

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-1127 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/ba779595-2674-4d84-bc41-889ae60bd6a4?source=cve · Note
• https://t.me/CVEtracker/42945 · Telegram Post
• https://plugins.trac.wordpress.org/browser/timeline-event-history/tags/3.2/includes/admin/class-timeline-wp-field-builder.php#L540 · Note
• https://twitter.com/VulmonFeeds/status/2015062784518615500 · Twitter Post
• https://twitter.com/CVEnew/status/2014995752930705806 · Twitter Post