Security Resilience

CVE-2025-31921

CSRF

CSRF
Published
16 May 2025
Modified
17 June 2026
CVSS Score v3.1 4.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS Score 0.0016 5th percentile
Risk Priority 35 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-2025-31921 is a medium-severity CSRF (CWE-352) vulnerability. Its CVSS base score is 4.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Internal Defacement (T1491.001); ranked at the 5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

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

Cross-Site Request Forgery (CSRF) vulnerability in loopus WP Ultimate Tours Builder WP_UltimateToursBuilder allows Cross Site Request Forgery.This issue affects WP Ultimate Tours Builder: from n/a through <= 1.055.

CWE(s)
CWE-352

Related Threats

MITRE ATT&CK Enterprise Techniques

T1491.001 Internal Defacement Impact
An adversary may deface systems internal to an organization in an attempt to intimidate or mislead users, thus discrediting the integrity of the systems.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-8026Shared CWE-352
CVE-2024-3151Shared CWE-352
CVE-2024-24820Shared CWE-352
CVE-2025-23712Shared CWE-352
CVE-2023-37891Shared CWE-352
CVE-2025-48255Shared CWE-352
CVE-2025-29722Shared CWE-352
CVE-2025-8891Shared CWE-352
CVE-2025-9899Shared CWE-352
CVE-2025-30980Shared CWE-352

Affected Assets

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