Security Resilience

CVE-2024-9450

CSRF in Syntacticsinc Easync ≤ 1.3.15

Public PoCCSRF
Published
15 May 2025
Modified
17 June 2026
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0019 9th percentile
Risk Priority 49 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2024-9450 is a medium-severity CSRF (CWE-352) vulnerability in Syntacticsinc Easync. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and SC-23 (Session Authenticity) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

The Free Booking Plugin for Hotels, Restaurants and Car Rentals WordPress plugin before 1.3.15 does not have CSRF check in place when updating its settings, which could allow attackers to make a logged in subscriber change them via a CSRF…

more

attack

CWE(s)
CWE-352

Related Threats

CVEs Like This One

CVE-2024-13560Shared CWE-352
CVE-2025-31921Shared CWE-352
CVE-2025-31457Shared CWE-352
CVE-2023-34033Shared CWE-352
CVE-2024-2960Shared CWE-352
CVE-2024-35009Shared CWE-352
CVE-2024-6136Shared CWE-352
CVE-2024-12003Shared CWE-352
CVE-2024-37431Shared CWE-352
CVE-2025-58869Shared CWE-352

Affected Assets

syntacticsinc
easync
≤ 1.3.15

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V3.3.2
  • V3.5.1
  • V10.2.1

Mitigating Controls (NIST 800-53 r5) AI

AC-3 Access Enforcement partial match

Access enforcement requires verifying that state-changing requests originate from the authenticated user rather than a forged cross-site source.

SC-23 Session Authenticity partial match

Protecting session authenticity prevents attackers from replaying or forging authenticated requests via the victim's browser.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
blocks

Secure SDLC practices directly require anti-CSRF controls such as tokens or SameSite attributes.

References