Server-Side Request Forgery Vulnerability in kLOsk Adloop
CVE-2026-15525

5.3MEDIUM

Key Information:

Vendor

Klosk

Status
Adloop
Vendor
CVE Published:
13 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-15525?

A vulnerability exists in kLOsk Adloop versions up to 0.9.0, specifically in the _validate_urls function located in src/adloop/ads/write.py. This flaw allows an attacker to manipulate the final_url argument, potentially leading to server-side request forgery. The vulnerability can be exploited remotely, putting affected systems at risk. To mitigate this issue, it is crucial for users to upgrade to version 0.10.0, which includes the necessary patch (commit 217399723e3a2fb39389e5355d49ed80aaf9ea7c).

Affected Version(s)

adloop 0.1

adloop 0.2

adloop 0.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-15525 - Proof of Concept

References

https://vuldb.com/vuln/377854
vdb-entrytechnical-description
https://vuldb.com/vuln/377854/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15525
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mcfly_Zhang (VulDB User)
.