SB2018082825 - Cross-site scripting in MyBB
Published: August 28, 2018 Updated: August 8, 2020
Security Bulletin ID
SB2018082825
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Cross-site scripting (CVE-ID: CVE-2018-15596)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
An issue was discovered in inc/class_feedgeneration.php in MyBB 1.8.17. On the forum RSS Syndication page, one can generate a URL such as http://localhost/syndication.php?fid=&type=atom1.0&limit=15. The thread titles (within title elements of the generated XML documents) aren't sanitized, leading to XSS.
Remediation
Install update from vendor's website.