CVE-2026-14987: GiveWP <= 4.16.3 - Authenticated (Give Worker+) Stored Cross-Site Scripting via 'twitter_message' Sequoia Template Setting
The GiveWP – Donation Plugin and Fundraising Platform plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'twittermessage' Sequoia Template Setting in all versions up to, and including, 4.16.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with give worker-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The injected script executes specifically when a donor clicks the Share on Twitter button on the Sequoia donation confirmation view, as that is when the unescaped twittermessage value is evaluated inside the JavaScript template literal.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
GiveWP – Donation Plugin and Fundraising Platformto a version that resolves this vulnerability.Fixed in 4.16.3 - Configuration
Ensure 'twitter_message' in the Sequoia template setting is properly input-sanitized and output-escaped before it is evaluated in the JavaScript template literal used by the Share on Twitter button on the donation confirmation view.
GiveWP (Sequoia Template Setting) twitter_message = Sanitize and output-escape the value before rendering in the Twitter Share button/JavaScript template literal
Event History
Frequently Asked Questions
What is the severity of CVE-2026-14987?
The severity of CVE-2026-14987 is classified as medium with a score of 6.4.
How do I fix CVE-2026-14987?
To fix CVE-2026-14987, update the GiveWP plugin to version 4.16.4 or later.
What type of vulnerability is CVE-2026-14987?
CVE-2026-14987 is an authenticated stored cross-site scripting (XSS) vulnerability.
Can CVE-2026-14987 lead to data breaches?
Yes, CVE-2026-14987 could potentially lead to data breaches by allowing attackers to execute scripts in the context of the victim's session.
Who is affected by CVE-2026-14987?
Anyone using GiveWP versions up to and including 4.16.3 is affected by CVE-2026-14987.