What is CVE-2025-71240?

CVE-2025-71240 is a medium-severity vulnerability in Spip, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-02-19.

How severe is CVE-2025-71240?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Spip

CVE-2025-71240

SPIP before 4.2.15 allows Cross-Site Scripting (XSS) via crafted content in HTML code tags. The application does not properly verify JavaScript within code tags, allowing an attacker to inject malicious scripts that execute in a victim's browser.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (6.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Spip — versions 4.2.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (vendor-advisory, Release Notes, patch)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2025-71240?: CVE-2025-71240 is a medium-severity vulnerability in Spip, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-02-19.
How severe is CVE-2025-71240?: Medium severity. CVSS v3 base score is 5.4 out of 10.