What is CVE-2022-28960?

CVE-2022-28960 is a high-severity vulnerability in Spip, classified under Improper Encoding or Escaping of Output. CVSS score: 8.8/10. Published 2022-05-19.

How severe is CVE-2022-28960?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Spip

CVE-2022-28960

A PHP injection vulnerability in Spip before v3.2.8 allows attackers to execute arbitrary PHP code via the _oups parameter at /ecrire.

Published 2022-05-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.020 (80.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: +0.000

Affected products

Spip

Weakness classification (CWE)

CWE-116 — Improper Encoding or Escaping of Output

References

thinkloveshare.com/en/hacking/rce_on_spip_and_root_me/ (Exploit, Third Party Advisory)
blog.spip.net/Mise-a-jour-CRITIQUE-de-securite-SPIP-3-2-8-et-SPIP-3-1-13.html (Release Notes, Vendor Advisory)
www.root-me.org/fr/Informations/Faiblesses-decouvertes/ (Third Party Advisory)
github.com/spip/SPIP/commit/0394b44774555ae8331b6e65e35065dfa0bb41e4 (Patch, Third Party Advisory)
github.com/spip/SPIP/commit/6c1650713fc948318852ace759aab8f1a84791cf (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-28960?: CVE-2022-28960 is a high-severity vulnerability in Spip, classified under Improper Encoding or Escaping of Output. CVSS score: 8.8/10. Published 2022-05-19.
How severe is CVE-2022-28960?: High severity. CVSS v3 base score is 8.8 out of 10.