CVE-2018-8815

MEDIUM

Alkacon OpenCMS 10.5.3 - Cross-Site Scripting via SVG Image in Gallery Function

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-8815. PoCs published by Sureshbabu Narvaneni.

AI-analyzed exploit summary This exploit demonstrates a stored XSS vulnerability in OpenCMS 10.5.3 via a malicious SVG file upload. The PoC includes an SVG file with embedded JavaScript that executes when viewed by an administrator.

Description

Cross-site scripting (XSS) vulnerability in the gallery function in Alkacon OpenCMS 10.5.3 allows remote attackers to inject arbitrary web script or HTML via a malicious SVG image.

Exploits (1)

exploitdb WORKING POC
by Sureshbabu Narvaneni · textwebappsphp
https://www.exploit-db.com/exploits/44392

This exploit demonstrates a stored XSS vulnerability in OpenCMS 10.5.3 via a malicious SVG file upload. The PoC includes an SVG file with embedded JavaScript that executes when viewed by an administrator.

Classification
Working Poc 100%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: OpenCMS 10.5.3
Auth required
Prerequisites: User credentials with Gallery Editor role · Access to the gallery upload function
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/alkacon/opencms-core/issues/587
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/44392/

Scores

CVSS v3 4.6
EPSS 0.0140
EPSS Percentile 69.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
alkacon/opencms 10.5.3
Published Mar 20, 2018
Tracked Since Feb 18, 2026