CVE-2015-5520

Orchard 1.7.3-1.8.2 and 1.9.x < 1.9.1 - Stored Cross-Site Scripting via Username

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2015-5520. PoCs published by Paris Zoumpouloglou.

AI-analyzed exploit summary This is a writeup describing a persistent XSS vulnerability in Orchard CMS versions 1.7.3, 1.8.2, and 1.9.0. The vulnerability allows an attacker to inject malicious scripts into the Username field during user registration, which executes when an administrator attempts to delete the account.

Description

Cross-site scripting (XSS) vulnerability in the Users module in Orchard 1.7.3 through 1.8.2 and 1.9.x before 1.9.1 allows remote attackers to inject arbitrary web script or HTML via the username when creating a new user account, which is not properly handled when deleting an account.

Exploits (1)

exploitdb WRITEUP
by Paris Zoumpouloglou · textwebappsasp
https://www.exploit-db.com/exploits/37533

This is a writeup describing a persistent XSS vulnerability in Orchard CMS versions 1.7.3, 1.8.2, and 1.9.0. The vulnerability allows an attacker to inject malicious scripts into the Username field during user registration, which executes when an administrator attempts to delete the account.

Classification
Writeup 100%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Orchard CMS 1.7.3, 1.8.2, 1.9.0
No auth needed
Prerequisites: Access to user registration functionality
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5

Scores

EPSS 0.0364
EPSS Percentile 88.2%

Details

CWE
CWE-79
Status published
Products (5)
orchardproject/orchard 1.7.3
orchardproject/orchard 1.8
orchardproject/orchard 1.8.1
orchardproject/orchard 1.8.2
orchardproject/orchard 1.9
Published Jul 14, 2015
Tracked Since Feb 18, 2026