6.1
MEDIUM CVSS 3.1
CVE-2025-56154
"htmly XSS Reflected"
Description

htmly v3.0.8 is vulnerable to Cross Site Scripting (XSS) in the /author/:name endpoint of the affected application. The name parameter is not properly sanitized before being reflected in the HTML response, allowing attackers to inject arbitrary JavaScript payloads.

INFO

Published Date :

Oct. 2, 2025, 4:15 p.m.

Last Modified :

Oct. 7, 2025, 5:58 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2025-56154 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Htmly htmly
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Sanitize user input to prevent script injection into HTML responses.
  • Sanitize the 'name' parameter before outputting it.
  • Implement output encoding for user-supplied data.
  • Update the application to a patched version.
  • Validate and sanitize all user inputs.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-56154.

URL Resource
https://gist.github.com/akinerkisa/28e97fa132b1a98cff5d05a79b437901 Third Party Advisory
https://github.com/danpros/htmly/releases/tag/v3.0.9#:~:text=Security%20fixes%20found%20in%20version%203.0.8 Release Notes
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-56154 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-56154 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-56154 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-56154 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Oct. 07, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:htmly:htmly:3.0.8:*:*:*:*:*:*:*
    Added Reference Type MITRE: https://gist.github.com/akinerkisa/28e97fa132b1a98cff5d05a79b437901 Types: Third Party Advisory
    Added Reference Type MITRE: https://github.com/danpros/htmly/releases/tag/v3.0.9#:~:text=Security%20fixes%20found%20in%20version%203.0.8 Types: Release Notes
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 02, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Added CWE CWE-79
  • New CVE Received by [email protected]

    Oct. 02, 2025

    Action Type Old Value New Value
    Added Description htmly v3.0.8 is vulnerable to Cross Site Scripting (XSS) in the /author/:name endpoint of the affected application. The name parameter is not properly sanitized before being reflected in the HTML response, allowing attackers to inject arbitrary JavaScript payloads.
    Added Reference https://gist.github.com/akinerkisa/28e97fa132b1a98cff5d05a79b437901
    Added Reference https://github.com/danpros/htmly/releases/tag/v3.0.9#:~:text=Security%20fixes%20found%20in%20version%203.0.8
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.1
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact