Jirafeau
CVE-2026-1466
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 6.1 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: Required. |
| Exploit ScenarioDerived | An attacker could exploit this flaw, detecting SVG and possibly executing JavaScript code. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Jirafeau's MIME type validation can be bypassed by sending crafted HTTP requests with invalid MIME types, allowing attackers to trigger browser-based MIME sniffing that may execute malicious JavaScript embedded in SVG or HTML files. An unauthenticated remote attacker can exploit this through a simple network request requiring user interaction to view a malicious preview. A patch is available and the vulnerability affects Jirafeau and related products.
Earlier versions of this analysis (1)
Jirafeau normally prevents browser preview for text files due to the possibility that for example SVG and HTML documents could be exploited for cross site scripting. [CVSS 6.1 MEDIUM]
RemediationAI
A vendor patch is available — apply it immediately. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
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
Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Jirafeau. Jirafeau normally prevents browser preview for text files due to the possibility that for example SVG and HTML documents could be exploited for cross site scripting. This was done by storing the MIME type of a file and allowing only browser preview for MIME types beginning with image (except for image/svg+xml, see CVE-2022-30110, CVE-2024-12326 and CVE-2025-7066), video and audio. However, it was possible to bypass this check by sending a manipulated HTTP request with an invalid MIME type like i
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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
Lifecycle Timeline
2DescriptionCVE.org
Jirafeau normally prevents browser preview for text files due to the possibility that for example SVG and HTML documents could be exploited for cross site scripting. This was done by storing the MIME type of a file and allowing only browser preview for MIME types beginning with image (except for image/svg+xml, see CVE-2022-30110, CVE-2024-12326 and CVE-2025-7066), video and audio. However, it was possible to bypass this check by sending a manipulated HTTP request with an invalid MIME type like image. When doing the preview, the browser tries to automatically detect the MIME type resulting in detecting SVG and possibly executing JavaScript code. To prevent this, MIME sniffing is disabled by sending the HTTP header X-Content-Type-Options: nosniff.
Executive ViewAI
CVE-2026-1466 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 6.1. 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
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
The administration panel of Jirafeau before 3.4.1 is vulnerable to three CSRF attacks on search functionalities: search_
script.php in Jirafeau before 3.4.1 is affected by two stored Cross-Site Scripting (XSS) vulnerabilities. Rated medium s
An issue was discovered in Jirafeau before 3.4.1. Rated medium severity (CVSS 6.1), this vulnerability is remotely explo
An issue was discovered in Jirafeau before 3.4.1. Rated medium severity (CVSS 6.1), this vulnerability is remotely explo
An issue was discovered in Jirafeau before 3.4.1. Rated medium severity (CVSS 6.1), this vulnerability is remotely explo
A CSRF issue was discovered in Jirafeau before 3.4.1. Rated medium severity (CVSS 4.9), this vulnerability is remotely e
Jirafeau normally prevents browser preview for text files due to the possibility that for example SVG and HTML documents
Jirafeau normally prevents browser preview for SVG files due to the possibility that manipulated SVG files could be expl
The file preview functionality in Jirafeau < 4.4.0, which is enabled by default, could be exploited for cross site scrip
GitHub PoC
Exploit-DB