CVE-2019-14537

CRITICAL

YOURLS < 1.7.3 - Authentication Bypass via Type Juggling

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-14537. PoCs published by Wocanilo.

AI-analyzed exploit summary This repository contains a functional proof-of-concept exploit for CVE-2019-14537, which targets a timestamp validation bypass in YOURLS (Your Own URL Shortener). The exploit uses a brute-force approach to find a valid timestamp that allows unauthorized access to the API.

Description

YOURLS through 1.7.3 is affected by a type juggling vulnerability in the api component that can result in login bypass.

Exploits (1)

nomisec WORKING POC 8 stars
by Wocanilo · poc
https://github.com/Wocanilo/CVE-2019-14537

This repository contains a functional proof-of-concept exploit for CVE-2019-14537, which targets a timestamp validation bypass in YOURLS (Your Own URL Shortener). The exploit uses a brute-force approach to find a valid timestamp that allows unauthorized access to the API.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: YOURLS (Your Own URL Shortener) versions prior to 1.7.3
No auth needed
Prerequisites: Network access to the target YOURLS instance · The target YOURLS instance must be running a vulnerable version
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (5)

Core 5
Core References
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/YOURLS/YOURLS/releases
Patch, Third Party Advisory x_refsource_misc
https://github.com/YOURLS/YOURLS/commits/master
Patch, Third Party Advisory x_refsource_misc
https://github.com/YOURLS/YOURLS/pull/2542
Exploit, Third Party Advisory x_refsource_misc
https://github.com/Wocanilo/CVE-2019-14537

Scores

CVSS v3 9.8
EPSS 0.1473
EPSS Percentile 94.7%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-843
Status published
Products (2)
yourls/yourls < 1.7.3
yourls/yourls 0 - 1.7.4Packagist
Published Aug 07, 2019
Tracked Since Feb 18, 2026