XSS in Sem-Cms Semcms

CVE-2018-18840

XSS was discovered in SEMCMS PHP V3.4 via the SEMCMS_SeoAndTag.php?Class=edit&CF=SeoAndTag tag_indexmetatit parameter.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (43.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Sem-cms Semcms — versions 3.4
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-18840?: CVE-2018-18840 is a medium-severity vulnerability in Sem-Cms Semcms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-10-30.
How severe is CVE-2018-18840?: Medium severity. CVSS v3 base score is 5.4 out of 10.