Cyber Resilience

CVE-2025-71244

Open Redirect in Spip 4.3.0 – 4.3.9

Public PoCOpen Redirect
Published
19 February 2026
Modified
24 February 2026
Patch / advisory
View advisory
CVSS Score v4 5.1
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0018 8th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-71244 is a medium-severity Open Redirect (CWE-601) vulnerability in Spip Spip. Its CVSS base score is 5.1 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 8th 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 SI-10 (Information Input Validation) and AC-4 (Information Flow Enforcement) — 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

SPIP before 4.4.5 and 4.3.9 allows an Open Redirect via the login form when used in AJAX mode. An attacker can craft a malicious URL that, when visited by a victim, redirects them to an arbitrary external site after login.…

more

This vulnerability only affects sites where the login page has been overridden to function in AJAX mode. It is not mitigated by the SPIP security screen.

CWE(s)
CWE-601

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Open redirect in public-facing SPIP login form directly enables exploitation of a web application vulnerability (T1190); no other techniques have a sufficiently direct mapping.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-71242Same product: Spip Spip
CVE-2026-22205Same product: Spip Spip
CVE-2026-27475Same product: Spip Spip
CVE-2026-27472Same product: Spip Spip
CVE-2025-71241Same product: Spip Spip
CVE-2026-27473Same product: Spip Spip
CVE-2026-22206Same product: Spip Spip
CVE-2023-24258Same product: Spip Spip
CVE-2023-53900Same product: Spip Spip
CVE-2024-23659Same product: Spip Spip

Affected Assets

spip
spip
4.3.0 — 4.3.9 · 4.4.0 — 4.4.5

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-10 Information Input Validation
  • AC-4 Information Flow Enforcement
  • SI-15 Information Output Filtering
Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V3.7.2

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly requires validation of redirect parameters in the AJAX login form to block attacker-supplied external URLs (CWE-601).

AC-4 Information Flow Enforcement partial match
prevent

Enforces information flow rules that restrict post-login redirects to only approved internal destinations.

SI-15 Information Output Filtering partial match
prevent

Filters untrusted redirect targets in application output before the login response is returned to the victim.

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
prevents

Secure SDLC practices directly require input validation and untrusted-redirect controls that prevent CWE-601.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

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

A.8.23 Web filtering partial match
mitigates

Preventing access to attacker-controlled or malicious sites stops users from being redirected to untrusted locations via open-redirect or phishing links.

References