What is CVE-2026-22205?

CVE-2026-22205 is a high-severity vulnerability in Spip, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 7.5/10. Published 2026-02-26.

How severe is CVE-2026-22205?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Spip

CVE-2026-22205

SPIP versions prior to 4.4.10 contain an authentication bypass vulnerability caused by PHP type juggling that allows unauthenticated attackers to access protected information. Attackers can exploit loose type comparisons in authentication logic to bypass login verification and retrieve sensitive internal data.

EPSS: 0.005 (38.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Spip — versions 0

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

References

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

Frequently asked questions

What is CVE-2026-22205?: CVE-2026-22205 is a high-severity vulnerability in Spip, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 7.5/10. Published 2026-02-26.
How severe is CVE-2026-22205?: High severity. CVSS v3 base score is 7.5 out of 10.