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CVE-2011-1127

30
FAUCET Score

CVE-2011-1127 describes an access restriction vulnerability in SSI.php of Simple Machines Forum (SMF) versions prior to 1.1.13 and 2.0 RC5. This flaw allows unauthenticated attackers to achieve an unspecified impact through unknown vectors. With a CVSS score of 10.0, indicating a critical severity, the vulnerability is easily exploitable over the network with no authentication required, leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.12CPE matchmatch criteria
cpe:2.3:a:simplemachines:smf:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:simplemachines:smf:1.0:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:simplemachines:smf:1.0:beta4:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:simplemachines:smf:1.0:beta4.1:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:simplemachines:smf:1.0:beta5:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
2.21%
Probability of exploitation in next 30 days
EPSS Percentile
80.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0221 is in the 66th percentile among its peer group of 51,466 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

custom.simplemachines.org / mods/downloads/smf_patch_2.0-RC4_security.zip
Patch
openwall.com / lists/oss-security/2011/02/22/17
Patch
openwall.com / lists/oss-security/2011/03/02/4
Patch
simplemachines.org / community/index.php
Patch