CVE-2026-26345 PUBLISHED

SPIP < 4.4.8 Cross-Site Scripting in Public Area

Assigner: VulnCheck
Reserved: 13.02.2026 Published: 19.02.2026 Updated: 19.02.2026

SPIP before 4.4.8 allows Cross-Site Scripting (XSS) in the public area for certain edge-case usage patterns. The echapper_html_suspect() function does not adequately detect all forms of malicious content, permitting an attacker to inject scripts that execute in a visitor's browser. This vulnerability is not mitigated by the SPIP security screen.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS Score: 2.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	Low
Attack Complexity	Low	Integrity	None	Integrity	Low
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS Score: 4.7

Attack Vector	Network	Scope	Changed
Attack Complexity	High	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	Low
User Interaction	Required	Availability Impact	None

CVSS 3.1

Product Status

Vendor	SPIP
Product	SPIP
Versions	Default: unaffected affected from 4.4.0 to 4.4.8 (excl.)

Credits

Arthur Deloffre (Vozec) finder
Louka Jacques-Chevallier (Laluka) finder
Philippe Boussin finder

References

Problem Types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE