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CVE-2009-4813

21
FAUCET Score

CVE-2009-4813 describes a Cross-Site Scripting (XSS) vulnerability in MyBB (MyBulletinBoard) version 1.4.10, specifically within the myps.php component. An unauthenticated remote attacker can inject arbitrary web script or HTML by manipulating the 'username' parameter during a 'donate' action. This vulnerability has a CVSS score of 4.3, indicating medium attack complexity and potential for partial integrity impact, but no confidentiality or availability impact. While not listed on the CISA KEV catalog, exploit code is publicly available on ExploitDB, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.4.10CPE matchmatch criteria
cpe:2.3:a:mybb:mybb:1.4.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.45%
Probability of exploitation in next 30 days
EPSS Percentile
70.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-33439 · Dec 24, 2009
This CVE's current EPSS score of 0.0145 is in the 43rd percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

osvdb.org / 61298
secunia.com / advisories/37910
Vendor Advisory
exploit-db.com / exploits/10622
Exploit
securityfocus.com / bid/37464
Exploit