CVE-2018-18840

MEDIUM 5.4CVE-2018-18840 · Published 30/10/2018 · updated 17/06/2026

In short

CVE-2018-18840 is a MEDIUM (CVSS 5.4) vulnerability affecting semcms (sem-cms).
Chance of exploitation in the next 30 days (EPSS): 0.56%, higher than 46.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
semcms sem-cms	`= 3.4`	No fix yet

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

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