Flaskblog
CVE-2024-22414
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. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. |
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Alert meAnalysisAI
flaskBlog is a simple blog app built with Flask. Rated medium severity (CVSS 5.4), 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
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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. flaskBlog is a simple blog app built with Flask. Improper storage and rendering of the /user/<user> page allows a user's comments to execute arbitrary javascript code. The html template user.html contains the following code snippet to render comments made by a user: <div class="content" tag="content">{{comment[2]|safe}}</div>. Use of the "safe" tag causes flask to _not_ escape the rendered content. To remediate this, simply remove the |safe tag from the HTML above. No fix is is available and users are advised to manually edit their installation. Affected products include: Dogukanurker Flaskblog.
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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
DescriptionNVD
flaskBlog is a simple blog app built with Flask. Improper storage and rendering of the /user/<user> page allows a user's comments to execute arbitrary javascript code. The html template user.html contains the following code snippet to render comments made by a user: <div class="content" tag="content">{{comment[2]|safe}}</div>. Use of the "safe" tag causes flask to _not_ escape the rendered content. To remediate this, simply remove the |safe tag from the HTML above. No fix is is available and users are advised to manually edit their installation.
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.
Affected Products (CPE)NVD
Incorrect access control in laskBlog v2.6.1 allows attackers to access all usernames via a crafted input. Rated critical
An arbitrary file deletion vulnerability in the /post/{postTitle} component of flaskBlog v2.6.1 allows attackers to dele
A cross-site scripting (XSS) vulnerability in flaskBlog v2.6.1 allows attackers to execute arbitrary web scripts or HTML
Incorrect access control in laskBlog v2.6.1 allows attackers to arbitrarily delete user accounts via a crafted request.
flaskBlog is a blog app built with Flask. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable,
flaskBlog is a blog app built with Flask. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable
flaskBlog is a blog app built with Flask. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable,
flaskBlog is a blog app built with Flask. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable,
flaskBlog is a blog app built with Flask. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable,
NVD
CVE.org
EPSS
GitHub
Exploit-DB