CVE-2009-4813 EXPLOIT
4.3
MEDIUM · CVSS 2.0 · EPSS 1.5% (pctl 73)
Patch early
A public exploit exists.
Description
Cross-site scripting (XSS) vulnerability in myps.php in MyBB (aka MyBulletinBoard) 1.4.10 allows remote attackers to inject arbitrary web script or HTML via the username parameter in a donate action.
Scoring
| CVSS | 4.3 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| EPSS | 1.45% — more likely to be exploited than 73% of all CVEs |
| Weakness | CWE-79 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2010-04-27 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| mybb | mybb |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | MyBB 1.4.10 - 'myps.php' Cross-Site Scripting | 2009-12-24 |
References
→ the Explorer · watch your stack · NVD