Exploitation Summary
EIP tracks 1 public exploit for EIP-2026-114442. PoCs published by Firehack.
AI-analyzed exploit summary The exploit demonstrates an input validation vulnerability in xNewsletter, allowing an attacker to inject arbitrary data into the datafile or cause multiple instances of the same email address to be written, leading to mail bombing or persistent data manipulation.
Description
xNewsletter 1.0 - Form Field Input Validation
Exploits (1)
exploitdb
WORKING POC
VERIFIED
by Firehack · textwebappsphp
https://www.exploit-db.com/exploits/21383
The exploit demonstrates an input validation vulnerability in xNewsletter, allowing an attacker to inject arbitrary data into the datafile or cause multiple instances of the same email address to be written, leading to mail bombing or persistent data manipulation.
Classification
Working Poc 90%
Attack Type
Other
Complexity
Trivial
Reliability
Reliable
Target:
xNewsletter (version not specified)
No auth needed
Prerequisites:
Access to the xNewsletter subscription form
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026
Full analysis →
Details
Status
pre_cve
Tracked Since
Feb 18, 2026