CVE-2026-24476
Cross-Site Scripting in Shaarli Input Tag Allows HTML Injection
Publication date: 2026-01-26
Last updated on: 2026-02-17
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| shaarli_project | shaarli | to 0.16.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in Shaarli versions prior to 0.16.0 involves crafting a malicious tag starting with a double quote (") that prematurely ends an <input> tag on the start page. This allows an attacker to inject arbitrary HTML, potentially leading to a cross-site scripting (XSS) attack.
How can this vulnerability impact me? :
The vulnerability can allow an attacker to execute arbitrary HTML or scripts in the context of the Shaarli start page, which may lead to cross-site scripting (XSS) attacks. This can result in unauthorized actions, data theft, or session hijacking for users of the affected Shaarli instance.
What immediate steps should I take to mitigate this vulnerability?
Upgrade Shaarli to version 0.16.0 or later, as this version fixes the vulnerability by preventing malicious tags that start with a double quote from prematurely ending the <input> tag and allowing XSS attacks.