CVE-2018-15596

Public Exploit

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.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.44% Top 25%
Vendor Advisory mybb.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.exploit-db.com/exploits/45393/ exploit vdb entry third party advisory
https://blog.mybb.com/2018/08/22/mybb-1-8-18-released-security-maintenance-release/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-15596?
CVE-2018-15596 has been scored as a medium severity vulnerability.
How to fix CVE-2018-15596?
To fix CVE-2018-15596, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-15596 being actively exploited in the wild?
It is possible that CVE-2018-15596 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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