Flatpress
CVE-2024-9699
MEDIUM
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 5.4 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, user interaction required. 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 vulnerability in the file upload functionality of the FlatPress CMS admin panel (version latest) allows an attacker to upload a file with a JavaScript payload disguised as a filename. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. 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 vulnerability in the file upload functionality of the FlatPress CMS admin panel (version latest) allows an attacker to upload a file with a JavaScript payload disguised as a filename. This can lead to a Cross-Site Scripting (XSS) attack if the uploaded file is accessed by other users. The issue is fixed in version 1.4.dev. Affected products include: Flatpress. Version information: version 1.4..
Know when Flatpress 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
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
A vulnerability in the file upload functionality of the FlatPress CMS admin panel (version latest) allows an attacker to upload a file with a JavaScript payload disguised as a filename. This can lead to a Cross-Site Scripting (XSS) attack if the uploaded file is accessed by other users. The issue is fixed in version 1.4.dev.
Executive ViewAI
CVE-2024-9699 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 5.4. Attackers could inject scripts to steal sessions or perform actions as authenticated users. A patch is available and should be applied during regular vulnerability management.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
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.
Malicious file upload attacks exploit insufficient validation when web applications accept user-provided files.
Affected Products (CPE)CVE.org
Path Traversal in GitHub repository flatpressblog/flatpress prior to 1.3. Rated critical severity (CVSS 9.8), this vulne
PHP Remote File Inclusion in GitHub repository flatpressblog/flatpress prior to 1.3. Rated critical severity (CVSS 9.8),
A stored cross-site scripting (XSS) vulnerability exists in flatpressblog/flatpress version 1.3. Rated high severity (CV
External Control of File Name or Path in GitHub repository flatpressblog/flatpress prior to 1.3. Rated high severity (CV
FlatPress CMS version latest is vulnerable to Cross-Site Request Forgery (CSRF) attacks that allow an attacker to enable
Flatpress v1.2.1 was discovered to contain a remote code execution (RCE) vulnerability in the Upload File function. Rate
flatpress 1.3.1 is vulnerable to Cross Site Scripting (XSS) in Administration area via Manage categories. Rated medium s
A cross-site scripting (XSS) vulnerability in Flatpress v1.3 allows attackers to execute arbitrary web scripts or HTML v
A cross-site scripting (XSS) vulnerability in Flatpress v1.3 allows attackers to execute arbitrary web scripts or HTML v
Cross-site Scripting (XSS) - Reflected in GitHub repository flatpressblog/flatpress prior to 1.3. Rated medium severity
A vulnerability was found in FlatPress. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable,
Flatpress v1.2.1 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the page parameter a
Exploit-DB