Apt-Cacher-NG 3.2.1 /html/.html cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Apt-Cacher-NG 3.2.1. It has been classified as problematic. The affected element is an unknown function of the file /html/.html. This manipulation causes cross site scripting. This vulnerability appears as CVE-2025-11147. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic was found in Apt-Cacher-NG 3.2.1. Affected by this vulnerability is an unknown code block of the file /html/.html. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

Reflected cross-site scripting (XSS) in Apt-Cacher-NG v3.2.1. The vulnerability allows malicious scripts (XSS) to be executed in “/html/.html”.

The weakness was presented by Pablo Lago Romaní. The advisory is shared at incibe.es. This vulnerability is known as CVE-2025-11147 since 09/29/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

By approaching the search of inurl:html/.html it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 269650 (Linux Distros Unpatched Vulnerability : CVE-2025-11147), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (269650). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

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

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

NVD Base Score: 5.4
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 269650
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-11147

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/29/2025 Advisory disclosed
09/29/2025 +0 days CVE reserved
09/29/2025 +0 days VulDB entry created
10/16/2025 +17 days VulDB entry last update

Sourcesinfo

Advisory: incibe.es
Researcher: Pablo Lago Romaní
Status: Not defined

CVE: CVE-2025-11147 (🔒)
GCVE (CVE): GCVE-0-2025-11147
GCVE (VulDB): GCVE-100-326233

Entryinfo

Created: 09/29/2025 13:39
Updated: 10/16/2025 18:07
Changes: 09/29/2025 13:39 (65), 10/11/2025 08:48 (2), 10/16/2025 18:07 (9)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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