Path Traversal in Danpros Htmly
CVE-2026-18645
A security flaw has been discovered in danpros HTMLy up to 3.1.1. This affects the function add_content of the file /system/admin/admin.php of the component Admin Content Endpoint. Performing a manipulation of the argument oldfile results in path traversal. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.004 (36.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
Affected products
- Danpros Htmly — versions 3.1.0, 3.1.1
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-18645?
- CVE-2026-18645 is a medium-severity vulnerability in Danpros Htmly, classified under Path Traversal. CVSS score: 5.4/10. Published 2026-08-03.
- How severe is CVE-2026-18645?
- Medium severity. CVSS v3 base score is 5.4 out of 10.