1. Home
  2. Vulnerabilities
  3. CVE-2025-11563
4.6
MEDIUM CVSS 3.1
CVE-2025-11563
wcurl path traversal with percent-encoded slashes
Description

URLs containing percent-encoded slashes (`/` or `\`) can trick wcurl into saving the output file outside of the current directory without the user explicitly asking for it. This flaw only affects the wcurl command line tool.

INFO

Published Date :

Feb. 25, 2026, 8:16 a.m.

Last Modified :

Feb. 26, 2026, 8:06 p.m.

Remotely Exploit :

Yes !

Source :

2499f714-1537-4658-8207-48ae4bb9eae9
Affected Products

The following products are affected by CVE-2025-11563 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Haxx curl
1 Curl wcurl
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update wcurl to a version that fixes the path traversal vulnerability.
  • Update the wcurl utility to the latest available version.
  • Avoid using percent-encoded slashes in URLs with wcurl.
  • Verify file save locations when using wcurl.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-11563.

URL Resource
https://curl.se/docs/CVE-2025-11563.html Patch Vendor Advisory
https://curl.se/docs/CVE-2025-11563.json Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/11/04/1 Mailing List Third Party Advisory
https://lists.debian.org/debian-release/2025/11/msg00504.html Mailing List Third Party Advisory Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-11563 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-11563 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-11563 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-11563 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Feb. 26, 2026

    Action Type Old Value New Value
    Added CWE CWE-22
    Added CPE Configuration AND OR *cpe:2.3:a:curl:wcurl:*:*:*:*:*:*:*:* versions from (including) 2024-12-08 up to (excluding) 2025-11-09 OR cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* versions from (including) 8.14.0 up to (excluding) 8.18.0
    Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2025/11/04/1 Types: Mailing List, Third Party Advisory
    Added Reference Type curl: https://curl.se/docs/CVE-2025-11563.html Types: Patch, Vendor Advisory
    Added Reference Type curl: https://curl.se/docs/CVE-2025-11563.json Types: Vendor Advisory
    Added Reference Type CISA-ADP: https://lists.debian.org/debian-release/2025/11/msg00504.html Types: Mailing List, Patch, Third Party Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Feb. 25, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
    Added Reference https://lists.debian.org/debian-release/2025/11/msg00504.html
  • New CVE Received by 2499f714-1537-4658-8207-48ae4bb9eae9

    Feb. 25, 2026

    Action Type Old Value New Value
    Added Description URLs containing percent-encoded slashes (`/` or `\`) can trick wcurl into saving the output file outside of the current directory without the user explicitly asking for it. This flaw only affects the wcurl command line tool.
    Added Reference https://curl.se/docs/CVE-2025-11563.html
    Added Reference https://curl.se/docs/CVE-2025-11563.json
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Feb. 25, 2026

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2025/11/04/1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 4.6
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact