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CVE-2011-5278

32
FAUCET Score

CVE-2011-5278 describes a critical SQL injection vulnerability in the Advanced Forum Signatures plugin (version 2.0.4) for MyBB, specifically within the signature.php file. This flaw allows unauthenticated remote attackers to execute arbitrary SQL commands by manipulating the 'afs_bar_right' parameter. With a CVSS score of 7.5 (High), successful exploitation could lead to unauthorized access, modification, or deletion of database content, impacting confidentiality, integrity, and availability. While not actively exploited in the wild (KEV: No), public exploit code is available via ExploitDB (EDB-17961), indicating a clear path for potential attackers. Despite the availability of exploit code, there is no significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.4CPE matchmatch criteria
cpe:2.3:a:advanced_forum_signatures_project:advanced_forum_signatures:2.0.4:*:*:*:*:mybb:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.33%
Probability of exploitation in next 30 days
EPSS Percentile
68.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-17961 · Oct 10, 2011
This CVE's current EPSS score of 0.0133 is in the 48th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

osvdb.org / 76295
secunia.com / advisories/46352
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/70473
exploit-db.com / exploits/17961
Exploit
securityfocus.com / bid/50051/info
Exploit