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
Published Dec 29, 2009
6.5
MEDIUMCVSS 3.1
EPSS 2.70%
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:S/C:C/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.70% (0.02698) | 85.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.70% (0.02698) | 83.92th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.50% (0.00501) | 63.90th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.39% (0.00390) | 74.14th | v3 (v2023.03.01) |
| Feb 16, 2024 | 0.39% (0.00390) | 72.63th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.48% (0.00477) | 75.02th | v3 (v2023.03.01) |
| Jul 10, 2023 | 0.47% (0.00473) | 72.33th | v3 (v2023.03.01) |
| May 27, 2023 | 0.60% (0.00600) | 75.35th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.85% (0.00850) | 79.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.81% (0.01815) | 77.08th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.81% (0.01815) | 77.03th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.81% (0.01815) | 75.00th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.81% (0.01815) | 54.30th | v2 (v2022.01.01) |
References (11)
- http://blog.mybboard.net/2009/12/29/mybb-1-4-11-released-minor-patch-security-update/ x_refsource_CONFIRMRelease Notes
- http://dev.mybboard.net/issues/617 x_refsource_CONFIRMBroken Link
- http://dev.mybboard.net/projects/mybb/repository/revisions/4663/diff/branches/1.4-stable/admin/modules/user/users.php x_refsource_CONFIRMBroken LinkExploit
- http://dev.mybboard.net/projects/mybb/repository/revisions/4663/diff/branches/1.4-stable/usercp.php x_refsource_CONFIRMBroken LinkExploit
- http://openwall.com/lists/oss-security/2010/10/08/7 mailing-listx_refsource_MLISTMailing List
- http://openwall.com/lists/oss-security/2010/10/11/8 mailing-listx_refsource_MLISTMailing List
- http://openwall.com/lists/oss-security/2010/12/06/2 mailing-listx_refsource_MLISTMailing List
- http://osvdb.org/61359 vdb-entryx_refsource_OSVDBBroken Link
- http://secunia.com/advisories/37906 third-party-advisoryx_refsource_SECUNIABroken LinkVendor Advisory
- http://www.securityfocus.com/bid/37489 vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry
- http://www.vupen.com/english/advisories/2009/3651 vdb-entryx_refsource_VUPENPermissions RequiredVendor Advisory
Change history (0)
No recorded changes yet.