CVE-2026-26223 SPIP < 4.4.8 Cross-Site Scripting via Iframe Tags in Private Area
Attackers can inject malicious scripts via iframe tags in the SPIP private area, potentially leading to code execution or account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-26223?
CVE-2026-26223 is a medium-severity cross-site scripting vulnerability in Spip Spip, published on 19 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-26223?
It affects 1 product.
Products include Spip Spip.
How do I fix CVE-2026-26223?
Upgrade to a fixed version.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-26223 being exploited?
There is no known exploitation of CVE-2026-26223 in the wild and no public exploit code.
Other vulnerabilities in Spip Spip
Sources
Also known as DEBIAN-CVE-2026-26223, GHSA-j95j-w4wp-8mqv, UBUNTU-CVE-2026-26223.