Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | Attackers can steal session cookies, redirect users to malicious sites, deface content, or perform actions on behalf of authenticated users. With a CVSS score of 6.1 (MEDIUM), this represents a moderate risk. |
| Exploit ScenarioDerived | An attacker injects a JavaScript payload into a vulnerable input field. When another user views the page, the script executes in their browser, stealing their session token. |
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Alert meAnalysisAIv1 – Mar 13, 2026
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.
Earlier versions of this analysis (1)
RemediationAI
Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.
Affected VersionsENISA
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Executive ViewAI
Organizations using htmly v3.0.8 should be aware of moderate risk from CVE-2025-56154, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
In htmly version 2.8.1, is vulnerable to an Arbitrary File Deletion on the local host when delete backup files. Rated cr
Arbitrary file relocation in HTMLy CMS through version 3.1.1 allows low-privileged authenticated users to move any web-s
A stored cross-site scripting (XSS) vulnerability in Htmly v2.9.5 allows attackers to execute arbitrary web scripts or H
The "blog title" field in the "Settings" menu "config" page of "dashboard" in htmly 2.8.1 has a storage cross site scrip
The "content" field in the "regular post" page of the "add content" menu under "dashboard" in htmly 2.8.1 has a storage
Multiple cross-site scripting (XSS) vulnerabilities in HTMLy 2.7.4 allow remote attackers to inject arbitrary web script
Privilege escalation in HTMLy 3.1.1 allows a remote attacker to elevate from a low-privileged account or session to admi
A cross-site scripting (XSS) vulnerability in Htmly v2.8.1 allows attackers to excute arbitrary web scripts HTML via a c
Path traversal in danpros HTMLy up to version 3.1.1 allows remote unauthenticated attackers to read arbitrary files from
A vulnerability, which was classified as problematic, has been found in htmly 5.3 whis affects the component Edit Profil
htmly 2.8.0 allows stored XSS via the blog title, Tagline, or Description to config.html.php. Rated medium severity (CVS
htmly v2.9.6 was discovered to contain an arbitrary file deletion vulnerability via the delete_post() function at admin.
EUVD-2025-32612
NVD
CVE.org
EPSS
GitHub
Exploit-DB