What is CVE-2018-19836?

CVE-2018-19836 is a medium-severity vulnerability in Metinfo, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-12-03.

How severe is CVE-2018-19836?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Metinfo

CVE-2018-19836

In Metinfo 6.1.3, include/interface/applogin.php allows setting arbitrary HTTP headers (including the Cookie header), and common.inc.php allows registering variables from the $_COOKIE value. This issue can, for example, be exploited in conjunction with CVE-2018-19835 to bypass many XSS filters such as the Chrome XSS filter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-12-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Metinfo — versions 6.1.3

Weakness classification (CWE)

References

github.com/imagemlt/metinfo/tree/master/reflected_xss_bypass_chrome (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-19836?: CVE-2018-19836 is a medium-severity vulnerability in Metinfo, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-12-03.
How severe is CVE-2018-19836?: Medium severity. CVSS v3 base score is 6.1 out of 10.