CVE-2025-65518

HIGH

Plesk Obsidian 8.0.1-18.0.73 - Unauthenticated Denial of Service via get_password.php Endpoint

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-65518. PoCs published by Jainil-89.

AI-analyzed exploit summary This repository contains a detailed technical writeup describing a Denial of Service (DoS) vulnerability in Plesk Obsidian versions 8.0.1 through 18.0.73. The vulnerability is triggered via a crafted request to the `get_password.php` endpoint, causing an infinite reload loop.

Description

Plesk Obsidian versions 8.0.1 through 18.0.73 are vulnerable to a Denial of Service (DoS) condition. The vulnerability exists in the get_password.php endpoint, where a crafted request containing a malicious payload can cause the affected web interface to continuously reload, rendering the service unavailable to legitimate users. An attacker can exploit this issue remotely without authentication, resulting in a persistent availability impact on the affected Plesk Obsidian instance.

Exploits (1)

nomisec WRITEUP
by Jainil-89 · poc
https://github.com/Jainil-89/CVE-2025-65518

This repository contains a detailed technical writeup describing a Denial of Service (DoS) vulnerability in Plesk Obsidian versions 8.0.1 through 18.0.73. The vulnerability is triggered via a crafted request to the `get_password.php` endpoint, causing an infinite reload loop.

Classification
Writeup 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Plesk Obsidian 8.0.1 to 18.0.73
No auth needed
Prerequisites: Access to the vulnerable Plesk Obsidian instance
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 7.5
EPSS 0.0053
EPSS Percentile 40.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (1)
webpros/plesk_obsidian 8.0.1 - 18.0.73
Published Jan 08, 2026
Tracked Since Feb 18, 2026