---
id: CVE-2020-27388
title: >-
  Multiple Stored Cross Site Scripting (XSS) vulnerabilities exist in the YOURLS
  Admin Panel, Versions 1.5 - 1.7.10
summary: >-
  Multiple Stored Cross Site Scripting (XSS) vulnerabilities exist in the YOURLS
  Admin Panel, Versions 1.5 - 1.7.10. An authenticated user must modify a PHP
  plugin with a malicious payload and upload it, resulting in multiple stored
  XSS is…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: yourls
product: yourls
affected:
  - 'yourls >= 1.5, <= 1.7.10'
published: '2020-10-23'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-27388'
references:
  - url: 'https://github.com/YOURLS/YOURLS/pull/2761'
    label: cve@mitre.org
  - url: 'https://johnjhacking.com/blog/cve-2020-27388/'
    label: cve@mitre.org
  - url: 'http://yourls.com'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/YOURLS/YOURLS/pull/2761'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://johnjhacking.com/blog/cve-2020-27388/'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00715
epssPercentile: 0.51654
ingestedAt: '2026-07-05T00:59:25.500Z'
---

## Overview

Multiple Stored Cross Site Scripting (XSS) vulnerabilities exist in the YOURLS Admin Panel, Versions 1.5 - 1.7.10. An authenticated user must modify a PHP plugin with a malicious payload and upload it, resulting in multiple stored XSS issues.

## Affected

- `yourls >= 1.5, <= 1.7.10`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.