What is CVE-2023-22851?

CVE-2023-22851 is a high-severity vulnerability in Tiki, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2023-01-14.

How severe is CVE-2023-22851?

High severity. CVSS v3 base score is 7.2 out of 10.

Arbitrary file upload in Tiki

CVE-2023-22851

Tiki before 24.2 allows lib/importer/tikiimporter_blog_wordpress.php PHP Object Injection by an admin because of an unserialize call.

Vulnerability class: Unrestricted File Upload

Published 2023-01-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (62.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Tiki

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

tiki.org/articles (Vendor Advisory)
karmainsecurity.com/KIS-2023-04 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-22851?: CVE-2023-22851 is a high-severity vulnerability in Tiki, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2023-01-14.
How severe is CVE-2023-22851?: High severity. CVSS v3 base score is 7.2 out of 10.