CVE-2025-13968: Starboard Suite Reservation Calendars <= 3.1.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
The Starboard Suite Reservation Calendars plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcode attributes in the [starboard-suite-lightbox] shortcode in all versions up to, and including, 3.1.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Security readout for executives and security teams
Plain-English summary
A WordPress reservation calendar plugin has a stored cross-site scripting issue. A logged-in user with Contributor-level access or higher could place malicious script into a plugin shortcode. That script may run when someone views the affected page, potentially affecting site visitors or administrators.
Executive priority
Treat as a moderate web content integrity risk. Prioritize sites with many content contributors, public traffic, or administrator visits to user-authored pages. No active exploitation is cited, but remediation should be scheduled promptly.
Technical view
CVE-2025-13968 affects Starboard Suite Reservation Calendars up to and including 3.1.4. The issue is insufficient sanitization and output escaping of attributes in the [starboard-suite-lightbox] shortcode. It is CWE-79 stored XSS with CVSS 3.1 score 6.4 and requires authenticated low-privileged access.
Likely exposure
Exposure is limited to WordPress sites using Starboard Suite Reservation Calendars version 3.1.4 or earlier, especially where Contributor or higher roles are broadly assigned or untrusted.
Exploitation context
Sources describe authenticated stored XSS requiring Contributor-level access or higher. KEV is false, and the provided sources do not state active exploitation in the wild.
Researcher notes
The source bundle identifies shortcode attribute handling as the vulnerable path and references WordPress Trac lines plus a changeset. Patch status is not fully described in the provided data, so confirm the fixed version from official plugin sources before closing.
Mitigation direction
Inventory WordPress sites for Starboard Suite Reservation Calendars.
Update to a version newer than 3.1.4 if available from official sources.
Restrict Contributor-level access to trusted users only.
Review pages or posts using the affected shortcode.
Check vendor and WordPress plugin guidance for confirmed remediation details.
Validation and detection
Confirm whether the plugin is installed and enabled.
Record the installed plugin version on each site.
Identify content using the starboard-suite-lightbox shortcode.
Review Contributor and higher user assignments.
Verify remediation against official plugin repository or vendor guidance.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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cwe · medium confidence lookup
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
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1CVSS vectors
4Timeline events
0ADP providers
5Source links
CVSS vector scores
1 official score
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CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-79 · source CWE mapping
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.