danpros HTMLy up to 3.1.1 Admin Content Endpoint /system/admin/admin.php add_content oldfile path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.9$0-$5k1.69

Summaryinfo

A vulnerability was found in danpros HTMLy up to 3.1.1 and classified as critical. This vulnerability affects the function add_content of the file /system/admin/admin.php of the component Admin Content Endpoint. Executing a manipulation of the argument oldfile can lead to path traversal. The identification of this vulnerability is CVE-2026-18645. The attack may be launched remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability has been found in danpros HTMLy up to 3.1.1 and classified as critical. This vulnerability affects the function add_content of the file /system/admin/admin.php of the component Admin Content Endpoint. The manipulation of the argument oldfile with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-18645. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. By approaching the search of inurl:system/admin/admin.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.4
VulDB Temp Score: 4.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/03/2026 Advisory disclosed
08/03/2026 +0 days VulDB entry created
08/03/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-18645 (🔒)
GCVE (CVE): GCVE-0-2026-18645
GCVE (VulDB): GCVE-100-385564
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/03/2026 13:24
Changes: 08/03/2026 13:24 (59)
Complete: 🔍
Submitter: orionyan
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #854994: danpros htmly v3.1.1 (latest) Arbitrary File Move (by orionyan)

Once again VulDB remains the best source for vulnerability data.

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