CVE-2026-18645

MEDIUM 5.4

danpros HTMLy Admin Content Endpoint admin.php add_content path traversal

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-22
Vendor	danpros
Product	htmly
Published	Aug 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

danpros / HTMLy

3.1.0 3.1.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/385564 vuldb.com: https://vuldb.com/vuln/385564/cti vuldb.com: https://vuldb.com/cve/CVE-2026-18645 vuldb.com: https://vuldb.com/submit/854994 github.com: https://github.com/orionyan520/cve_report/issues/6

Credits

🔍 orionyan (VulDB User) VulDB CNA Team