CVE-2021-41784

HIGH

Foxit PDF Editor 11.0-11.1 and PDF Reader 11.0-11.1 and PhantomPDF < 10.1.6 - Use-After-Free via JavaScript Mishandling

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-41784. PoCs published by Jeromeyoung.

AI-analyzed exploit summary This PoC exploits a path traversal vulnerability in Apache HTTP Server 2.4.49 (CVE-2021-41784) by using URL-encoded dot segments to bypass path normalization and access sensitive files like /etc/passwd.

Description

Foxit PDF Reader before 11.1 and PDF Editor before 11.1, and PhantomPDF before 10.1.6, allow attackers to trigger a use-after-free and execute arbitrary code because JavaScript is mishandled.

Exploits (1)

nomisec WORKING POC
by Jeromeyoung · poc
https://github.com/Jeromeyoung/CVE-2021-41784

This PoC exploits a path traversal vulnerability in Apache HTTP Server 2.4.49 (CVE-2021-41784) by using URL-encoded dot segments to bypass path normalization and access sensitive files like /etc/passwd.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Apache HTTP Server 2.4.49
No auth needed
Prerequisites: Apache HTTP Server 2.4.49 running with vulnerable configuration
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0068
EPSS Percentile 47.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (3)
foxit/pdf_editor 11.0 - 11.1
foxit/pdf_reader 11.0 - 11.1
foxit/phantompdf < 10.1.6
Published Aug 29, 2022
Tracked Since Feb 18, 2026