SSRF in Spip
CVE-2026-27472
SPIP before 4.4.9 allows Blind Server-Side Request Forgery (SSRF) via syndicated sites in the private area. When editing a syndicated site, the application does not verify that the syndication URL is a valid remote URL, allowing an authenticated attacker to make the server issue requests to arbitrary internal or external destinations. This vulnerability is not mitigated by the SPIP security screen.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (25.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.001
Affected products
- Spip — versions 4.4.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html (vendor-advisory, Release Notes, patch, Vendor Advisory)
- git.spip.net/spip/spip (Product, product)
- www.vulncheck.com/advisories/spip-blind-server-side-request-forgery-via-syndica… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-27472?
- CVE-2026-27472 is a medium-severity vulnerability in Spip, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2026-02-19.
- How severe is CVE-2026-27472?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2026-27472 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.