vulnwire
5.0med

CVE-2008-4930

MyBB (aka MyBulletinBoard) 1.4.2 does not properly handle an uploaded file with a nonstandard file type that contains HTML sequences, which…

Published 18 y ago · modified 4 mo ago · JSON

CVSS
5.0
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.2%
percentile 67%
Public exploits
0
none known

MyBB (aka MyBulletinBoard) 1.4.2 does not properly handle an uploaded file with a nonstandard file type that contains HTML sequences, which allows remote attackers to cause that file to be processed as HTML by Internet Explorer's content inspection, aka "Incomplete protection against MIME-sniffing." NOTE: this could be leveraged for XSS and other attacks.

Exploit prediction (EPSS)

1.15% probability of exploitation in the next 30 days, higher than 67% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • archives.neohapsis.com /archives/bugtraq/2008-10/0203.html · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • archives.neohapsis.com /archives/fulldisclosure/2008-10/0472.html · mailing-list, x_refsource_FULLDISC, x_transferred
  • openwall.com /lists/oss-security/2008/11/01/2 · mailing-list, x_refsource_MLIST, 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.