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 | CVSS score of 4.8 (MEDIUM). Attack characteristics: network attack vector, low complexity, high privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.03%. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Mar 28, 2026
A security vulnerability has been detected in htmly up to 3.1.0. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
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
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A security vulnerability has been detected in htmly up to 3.1.0. The impacted element is an unknown function of the file /htmly/admin/field/post of the component Custom Field Handler. Such manipulation of the argument label leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way. Affected products include: Htmly. Version information: up to 3.1.0..
Know when Htmly gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Primary rating from Vendor (vuldb) · only source for this CVE.
CVSS VectorVendor: vuldb
Lifecycle Timeline
4DescriptionCVE.org
A security vulnerability has been detected in htmly up to 3.1.0. The impacted element is an unknown function of the file /htmly/admin/field/post of the component Custom Field Handler. Such manipulation of the argument label leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Executive ViewAI
Organizations using htmly should be aware of moderate risk from CVE-2025-10758, a cross-site scripting vulnerability rated CVSS 4.8. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Proof-of-concept code is publicly available. 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
NVD
CVE.org
EPSS
VulDB
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.
Affected Products (CPE)CVE.org
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.
GitHub PoC
Exploit-DB