CVE-2025-70886

HIGH

halo < 2.22.4 - Denial of Service via Comment Submission Payload

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-70886. PoCs published by HowieHz.

AI-analyzed exploit summary This repository contains a functional PoC exploit for CVE-2025-70886, a persistent DoS vulnerability in Halo CMS. The exploit leverages a crafted payload to crash the admin comment interface, demonstrated via a GitHub Actions workflow that automates testing against multiple Halo versions.

Description

An issue in halo v.2.22.4 and before allows a remote attacker to cause a denial of service via a crafted payload to the public comment submission endpoint

Exploits (1)

nomisec WORKING POC
by HowieHz · poc
https://github.com/HowieHz/CVE-2025-70886

This repository contains a functional PoC exploit for CVE-2025-70886, a persistent DoS vulnerability in Halo CMS. The exploit leverages a crafted payload to crash the admin comment interface, demonstrated via a GitHub Actions workflow that automates testing against multiple Halo versions.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Halo CMS <= v2.22.4
No auth needed
Prerequisites: Access to the Halo CMS comment submission endpoint
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 7.5
EPSS 0.0044
EPSS Percentile 35.0%
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)
halo/halo < 2.22.4
Published Feb 12, 2026
Tracked Since Feb 18, 2026