CVE-2026-1127

MEDIUM 6.1

Timeline Event History <= 3.2 - Reflected Cross-Site Scripting

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

The Timeline Event History plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `id` parameter in all versions up to, and including, 3.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

CWE	CWE-79
Vendor	wpdiscover
Product	timeline event history
Published	Jan 24, 2026
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

wpdiscover / Timeline Event History

0 ≤ 3.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/ba779595-2674-4d84-bc41-889ae60bd6a4?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/timeline-event-history/tags/3.2/includes/admin/class-timeline-wp-field-builder.php#L540

Credits

Arkadiusz Hydzik