CVE-2026-26223

MEDIUM 6.1

SPIP < 4.4.8 Cross-Site Scripting via Iframe Tags in Private Area

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	spip
Product	spip
Published	Feb 19, 2026
Last Updated	Mar 5, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

SPIP / SPIP

4.4.0 < 4.4.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗

blog.spip.net: https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-8.html git.spip.net: https://git.spip.net/spip/spip vulncheck.com: https://www.vulncheck.com/advisories/spip-cross-site-scripting-via-iframe-tags-in-private-area

Credits

Arthur Deloffre (Vozec) Louka Jacques-Chevallier (Laluka)