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CVE-2025-55291

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Date: August 18, 2025

Shaarli is a minimalist bookmark manager and link sharing service. Prior to 0.15.0, the input string in the cloud tag page is not properly sanitized. This allows the </title> tag to be prematurely closed, leading to a reflected Cross-Site Scripting (XSS) vulnerability. This vulnerability is fixed in 0.15.0.

Severity Score

Related Resources (5)

https://github.com/shaarli/Shaarli/security/advisories/GHSA-7w7w-pw4j-265h
https://nvd.nist.gov/vuln/detail/CVE-2025-55291
https://security-tracker.debian.org/tracker/CVE-2025-55291
https://github.com/shaarli/Shaarli/commit/66faa61335a6e72184be64092ff1242ffa4fe5b6
https://www.mend.io/vulnerability-database/CVE-2025-55291

Severity Score

Weakness Type (CWE)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-79

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

CWE-80

Improper Neutralization of Alternate XSS Syntax

CWE-87

Top Fix

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Upgrade Version

Upgrade to version https://github.com/shaarli/Shaarli.git - v0.15.0

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

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