vulnwire
9.8crit

CVE-2016-9420

MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allow remote attackers to have unspecified impact via vectors re…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.6%
percentile 85%
Public exploits
0
none known

MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allow remote attackers to have unspecified impact via vectors related to "loose comparison false positives."

Exploit prediction (EPSS)

2.56% probability of exploitation in the next 30 days, higher than 85% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.09.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • blog.mybb.com /2016/10/17/mybb-1-8-8-merge-system-1-8-8-release/ · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2016/11/18/1 · mailing-list, x_refsource_MLIST, x_transferred
  • openwall.com /lists/oss-security/2016/11/10/8 · mailing-list, x_refsource_MLIST, x_transferred
  • securityfocus.com /bid/94396 · vdb-entry, x_refsource_BID, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.