What is CVE-2018-19556?

CVE-2018-19556 is a medium-severity vulnerability in Zblogcn Z-Blogphp, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2018-11-26.

How severe is CVE-2018-19556?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Improper input validation in Zblogcn Z-Blogphp

CVE-2018-19556

zb_system/admin/index.php?act=UploadMng in Z-BlogPHP 1.5 mishandles file preview, leading to content spoofing. NOTE: the software maintainer disputes that this is a vulnerability

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

Published 2018-11-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.010 (62.0th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.0% 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

Zblogcn Z-Blogphp — versions 1.5

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

github.com/zblogcn/zblogphp/issues/205 (Third Party Advisory)
github.com/novysodope/Z-BlogPHP1.5Zero/blob/bee6dba066b3f9aa378dcde63e1e0ffad6a… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-19556?: CVE-2018-19556 is a medium-severity vulnerability in Zblogcn Z-Blogphp, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2018-11-26.
How severe is CVE-2018-19556?: Medium severity. CVSS v3 base score is 4.3 out of 10.