CVE-2016-9415 json
MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows allow remote attackers to overwrite arbitr…
published 2017-01-31 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10225
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows allow remote attackers to overwrite arbitrary CSS files via vectors related to "style import."
Patch / fix
Exploit prediction
1.86% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
blog.mybb.com
/2016/10/17/mybb-1-8-8-merge-system-1-8-8-release/
patch, release-notes, vendor-advisory
-
openwall.com
/lists/oss-security/2016/11/18/1
mailing-list, patch, third-party-advisory
-
openwall.com
/lists/oss-security/2016/11/10/8
mailing-list, patch, third-party-advisory
-
securityfocus.com
/bid/94396
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2016-9415
- NVD CVE-2016-9415
Fencer Intel 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.