CVE-2026-26223 — Cross-site Scripting in Spip

CWE-79 — Cross-site Scripting5 documents5 sources
Severity
5.1MEDIUMNVD
EPSS
0.0%
top 86.95%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
SpipDebian Spip
Timeline
PublishedFeb 19

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.

CVSS vector

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

Affected Packages3 packages

▶NVDspip/spip4.4.0 — 4.4.8
▶debiandebian/spip< spip 4.4.9+dfsg-1 (forky)
▶Debianspip/spip< 4.4.11+dfsg-0+deb13u1+1

🔴Vulnerability Details

2
GHSA
GHSA-j95j-w4wp-8mqv: SPIP before 4↗2026-02-19
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OSV
CVE-2026-26223: SPIP before 4↗2026-02-19
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📋Vendor Advisories

1
Debian
CVE-2026-26223: spip - SPIP before 4.4.8 allows cross-site scripting (XSS) in the private area via mali...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-26223 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-26223 — Cross-site Scripting in Spip | cvebase