CVE-2009-4449
Directory traversal vulnerability in MyBB (aka MyBulletinBoard) 1.4.10, and possibly earlier versions, when changing the user avatar from…
- 6.5MediumCVSS base score
- 2.7%Exploitation in 30 daysEPSS · top 14% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Directory traversal vulnerability in MyBB (aka MyBulletinBoard) 1.4.10, and possibly earlier versions, when changing the user avatar from the gallery, allows remote authenticated users to determine the existence of files via directory traversal sequences in the avatar and possibly the gallery parameters, related to (1) admin/modules/user/users.php and (2) usercp.php.
Timeline
ID reserved
By mitre
Published
- 15 years later
· 15 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Affected products
n/a
- affected n/a
References
References11
- 37489 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [oss-security] 20101008 CVE request: mybb before 1.4.11 and before 1.4.12 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://dev.mybboard.net/projects/mybb/repository/revisions/4663/diff/branches/1.4-stable/admin/modules/user/users.php (opens in a new tab)x_refsource_CONFIRMx_transferred
- 37906 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [oss-security] 20101011 Re: CVE request: mybb before 1.4.11 and before 1.4.12 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://dev.mybboard.net/issues/617 (opens in a new tab)x_refsource_CONFIRMx_transferred
- ADV-2009-3651 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- [oss-security] 20101206 Re: CVE request: mybb before 1.4.11 and before 1.4.12 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 61359 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- http://blog.mybboard.net/2009/12/29/mybb-1-4-11-released-minor-patch-security-update/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://dev.mybboard.net/projects/mybb/repository/revisions/4663/diff/branches/1.4-stable/usercp.php (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-4416 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-4449)Record last updated .