Servers and applications
CVE-2018-15596
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.
- Severity
- Medium 6.1
- Published
- 28 Aug 2018
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 2.3% in the next 30 daysHigher than 83% of CVEs. EPSS by FIRST, 10 Nov 2026
- Weakness
- Cross-site scripting (CWE-79)
- Attack
- Over the network · No login needed · Needs someone to click or open something
- Attacker can
- Read some data · Change some data
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
MyBBServers and applications · cpe:a:mybb:mybb |
|