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MEDIUM

CVE-2018-14840

CVSS v3

6.1

MEDIUM

EPSS Score

3.7 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • intelliants/subrionPackagistall versions · fixed in 4.2.2

Full record on NVD

Description

uploads/.htaccess in Subrion CMS 4.2.1 allows XSS because it does not block .html file uploads (but does block, for example, .htm file uploads).

Technical details

Published
2018-08-02
Exploit-DB
EDB-45150

Frequently asked questions

What is CVE-2018-14840?

uploads/.htaccess in Subrion CMS 4.2.1 allows XSS because it does not block .html file uploads (but does block, for example, .htm file uploads).

Is CVE-2018-14840 actively exploited?

Active exploitation of CVE-2018-14840 has not been confirmed. Its EPSS score was 3.7% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-14840?

CVE-2018-14840 has a CVSS v3 base score of 6.1 (MEDIUM severity).

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