How severe is CVE-2018-19836?

CVE-2018-19836 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-19836 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19836?

CVE-2018-19836 affects Metinfo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-19836?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-19836 published?

CVE-2018-19836 was published on 2018-12-03 and last updated on 2026-06-17.

CVE-2018-19836

CVE-2018-19836 is a medium-severity vulnerability in Metinfo with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Metinfo
Published: 2018-12-03
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2018-19836?: CVE-2018-19836 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-19836 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19836?: CVE-2018-19836 affects Metinfo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-19836?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-19836 published?: CVE-2018-19836 was published on 2018-12-03 and last updated on 2026-06-17.

References

https://github.com/imagemlt/metinfo/tree/master/reflected_xss_bypass_chrome

Affected products (1)

cpe:2.3:a:metinfo:metinfo:6.1.3:*:*:*:*:*:*:*

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