What is CVE-2026-33549?

CVE-2026-33549 is a medium-severity vulnerability in Spip, classified under CWE-688. CVSS score: 6.7/10. Published 2026-03-22.

How severe is CVE-2026-33549?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Spip

CVE-2026-33549

SPIP 4.4.10 through 4.4.12 before 4.4.13 allows unintended privilege assignment (of administrator privileges) during the editing of an author data structure because of STATUT mishandling.

Published 2026-03-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.004 (35.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002

Affected products

Spip — versions 4.4.10

Weakness classification (CWE)

CWE-688

References

blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-13.html (Patch, Release Notes)
git.spip.net/spip/prive/-/merge_requests/131 (Patch, Issue Tracking)
git.spip.net/spip/prive/-/commit/b8481a7feb00f301f0ff7d5ce2aad8a772d92c2e (Patch)

Frequently asked questions

What is CVE-2026-33549?: CVE-2026-33549 is a medium-severity vulnerability in Spip, classified under CWE-688. CVSS score: 6.7/10. Published 2026-03-22.
How severe is CVE-2026-33549?: Medium severity. CVSS v3 base score is 6.7 out of 10.