CVE-2018-15596 json
An issue was discovered in inc/class_feedgeneration.php in MyBB 1.8.17.
published 2018-08-28 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-7470
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 1
- Exploit-DB
Summary
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.
Timeline
- Published
- First public exploit (EDB-45393)
Exploit prediction
2.26% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-45393 MyBB 1.8.17 - Cross-Site Scripting webapps, 2018-09-12
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
exploit-db.com
/exploits/45393/
exploit, third-party-advisory, vdb-entry
-
blog.mybb.com
/2018/08/22/mybb-1-8-18-released-security-maintenance-release/
vendor-advisory
Sources
- CVE List CVE-2018-15596
- NVD CVE-2018-15596
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.