What is CVE-2023-22850?

CVE-2023-22850 is a high-severity vulnerability in Tiki, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2023-01-14.

How severe is CVE-2023-22850?

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

Deserialization in Tiki

CVE-2023-22850

Tiki before 24.1, when the Spreadsheets feature is enabled, allows lib/sheet/grid.php PHP Object Injection because of an unserialize call.

Vulnerability class: Insecure Deserialization

Published 2023-01-14 · 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: 0.012 (66.2th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Tiki

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

tiki.org/articles (Vendor Advisory)
karmainsecurity.com/KIS-2023-03 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-22850?: CVE-2023-22850 is a high-severity vulnerability in Tiki, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2023-01-14.
How severe is CVE-2023-22850?: High severity. CVSS v3 base score is 8.8 out of 10.