What is CVE-2018-10085?

CVE-2018-10085 is a critical-severity vulnerability in Cmsmadesimple Cms Made Simple, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2018-04-13.

How severe is CVE-2018-10085?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-10085 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Cmsmadesimple Cms Made Simple

CVE-2018-10085

CMS Made Simple (CMSMS) through 2.2.6 allows PHP object injection because of an unserialize call in the _get_data function of \lib\classes\internal\class.LoginOperations.php. By sending a crafted cookie, a remote attacker can upload and execute code, or delete files.

Vulnerability class: Insecure Deserialization

Published 2018-04-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.038 (89.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.039 · newest: 0.038 · change: -0.001

Affected products

Cmsmadesimple Cms Made Simple

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

itodaro/cve

References

github.com/itodaro/cve/blob/master/README.md (Technical Description, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-10085?: CVE-2018-10085 is a critical-severity vulnerability in Cmsmadesimple Cms Made Simple, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2018-04-13.
How severe is CVE-2018-10085?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-10085 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.