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FastBook CVE-2025-26593

| EUVDEUVD-2025-17162 MEDIUM
Cross-Site Request Forgery (CSRF) (CWE-352)
2025-06-06 audit@patchstack.com
4.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
vuln.today AI
4.3 MEDIUM

Network attack vector, low complexity, no privileges, user interaction required, low availability impact.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

3
EUVD ID Assigned
Mar 14, 2026 - 18:10 euvd
EUVD-2025-17162
Analysis Generated
Mar 14, 2026 - 18:10 vuln.today
CVE Published
Jun 06, 2025 - 13:15 nvd
MEDIUM 4.3

DescriptionCVE.org

Cross-Site Request Forgery (CSRF) vulnerability in FasterThemes FastBook allows Cross Site Request Forgery. This issue affects FastBook: from n/a through 1.1.

AnalysisAI

Cross-Site Request Forgery (CSRF) in FastBook 1.1 allows an attacker to trick an authenticated admin into performing unintended actions, such as modifying settings or deleting data, by luring them to a malicious page. No public exploit or active exploitation has been identified, and the EPSS score is low (0.03%).

Technical ContextAI

The vulnerability is a Cross-Site Request Forgery (CSRF) classified under CWE-352. CSRF attacks exploit the trust a web application has in an authenticated user's browser, allowing an attacker to forge requests that appear legitimate. The affected product is FastBook, a WordPress plugin for appointment booking and scheduling. The CPE data indicates all versions up to and including 1.1 are affected.

RemediationAI

Update FastBook to version 1.2 or later, which includes a CSRF fix. As a workaround, implement CSRF tokens in all state-changing requests or use a WordPress security plugin that adds CSRF protection. Note that disabling the plugin may break booking functionality.

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CVE-2025-26593 vulnerability details – vuln.today

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