Description

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

References

CVE-2018-15596

Related Vulnerabilities

WordPress Plugin DMSGuestbook Multiple Remote Vulnerabilities (1.8.0)

WordPress Plugin WordPress Photo Gallery by Gallery Bank Cross-Site Scripting (3.0.228)

WordPress Plugin Delete All Comments Easily Cross-Site Request Forgery (1.3)

Liferay Portal Unrestricted Upload of File with Dangerous Type Vulnerability (CVE-2025-43766)

WordPress Plugin Quiz and Survey Master (QSM)-Easy Quiz and Survey Maker Multiple Vulnerabilities (8.0.4)

Severity

Medium

Classification

CVE-2018-15596 CWE-707 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Tags

Missing Update Known Vulnerabilities