What is CVE-2018-13056?

CVE-2018-13056 is a high-severity vulnerability in Zzcms, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2018-07-02.

How severe is CVE-2018-13056?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2018-13056 known to be exploited?

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

Improper input validation in Zzcms

CVE-2018-13056

An issue was discovered on zzcms 8.3. There is a vulnerability at /user/del.php that can delete any file by placing its relative path into the zzcms_main table and then making an img add request. This can be leveraged for database access by deleting install.lock.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2018-07-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.013 (68.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Zzcms — versions 8.3

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

SexyBeast233/SecBooks

References

github.com/actionyz/ZZCMS/blob/master/del.php.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-13056?: CVE-2018-13056 is a high-severity vulnerability in Zzcms, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2018-07-02.
How severe is CVE-2018-13056?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-13056 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.