What is the CVSS score of CVE-2026-22205?

CVE-2026-22205 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.3%.

Which versions of PHP are affected by CVE-2026-22205?

SPIP versions up to 4.4.10 contain a high-severity vulnerability enabling unauthorized access to protected information.

How to fix or mitigate CVE-2026-22205?

Within 24 hours: Inventory all SPIP installations and identify affected versions (≤4.4.10); assess what sensitive data each instance handles. Within 7 days: Implement network segmentation to restrict SPIP access to authorized users only; deploy WAF rules to block exploitation patterns; disable non-critical SPIP features if feasible. Within 30 days: Monitor vendor advisories for patch availability; evaluate alternative CMS solutions or prepare upgrade path for when patches release; conduct access logs review for indicators of compromise.

PHP CVE-2026-22205

HIGH

Authentication Bypass Using an Alternate Path or Channel (CWE-288)

2026-02-26 disclosure@vulncheck.com

PHP Authentication Bypass Spip

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:56 vuln.today

CVE Published

Feb 26, 2026 - 21:28 nvd

HIGH 7.5

DescriptionCVE.org

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.

AnalysisAI

Spip versions up to 4.4.10 contains a vulnerability that allows attackers to access protected information (CVSS 7.5).

Technical ContextAI

affects Spip. 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.