Vulnerability · Published Feb 19, 2026 · Assigned by VulnCheck
CVE-2026-26223SPIP < 4.4.8 Cross-Site Scripting via Iframe Tags in Private Area
Medium 6.1
In plain English
A medium-severity security flaw in SPIP from SPIP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.2%top 89.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | spip | 4.4.11+dfsg-0+deb13u1 | DEBIAN-CVE-2026-26223 |
| Debian:13 | spip | 4.4.11+dfsg-0+deb13u1 | DSA-6155-1 |
| Debian:14 | spip | 4.4.9+dfsg-1 | DEBIAN-CVE-2026-26223 |
| Ubuntu:22.04:LTS | spip | no fix listed | UBUNTU-CVE-2026-26223 |
| Ubuntu:24.04:LTS | spip | no fix listed | UBUNTU-CVE-2026-26223 |
| Ubuntu:25.10 | spip | no fix listed | UBUNTU-CVE-2026-26223 |
| Ubuntu:26.04:LTS | spip | no fix listed | UBUNTU-CVE-2026-26223 |
Affected products (as reported)
References
- https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-8.html vendor-advisory, patch
- https://git.spip.net/spip/spip product
- VulnCheck Advisory: SPIP < 4.4.8 Cross-Site Scripting via Iframe Tags in Private Area third-party-advisory