What is CVE-2018-7721?

CVE-2018-7721 is a medium-severity vulnerability in Metinfo, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-03-07.

How severe is CVE-2018-7721?

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

XSS in Metinfo

CVE-2018-7721

Cross Site Scripting (XSS) exists in MetInfo 6.0.0 via /feedback/index.php because app/system/feedback/web/feedback.class.php mishandles input data.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-03-07 · 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: 0.007 (49.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Metinfo — versions 6.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/Gitaddy/vluns/blob/master/Metinfo.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-7721?: CVE-2018-7721 is a medium-severity vulnerability in Metinfo, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-03-07.
How severe is CVE-2018-7721?: Medium severity. CVSS v3 base score is 6.1 out of 10.