CVE-2026-26223

MEDIUM

6.1

Description

SPIP before 4.4.8 allows cross-site scripting (XSS) in the private area via malicious iframe tags. The application does not properly sandbox or escape iframe content in the back-office, allowing an attacker to inject and execute malicious scripts. The fix adds a sandbox attribute to iframe tags in the private area. This vulnerability is not mitigated by the SPIP security screen.

CVE Details

CVSS v3.1 Score6.1

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published2/19/2026

Last Modified3/2/2026

Sourcenvd

Honeypot Sightings0

Affected Products

spip:spip

Weaknesses (CWE)

CWE-79

References

https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-8.html(disclosure@vulncheck.com)

https://git.spip.net/spip/spip(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/spip-cross-site-scripting-via-iframe-tags-in-private-area(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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