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CVE-2011-2688

26
FAUCET Score

CVE-2011-2688 describes a SQL injection vulnerability in the mysql/mysql-auth.pl script within the mod_authnz_external module (version 3.2.5 and earlier) for the Apache HTTP Server. This flaw allows remote, unauthenticated attackers to execute arbitrary SQL commands by manipulating the 'user' field during authentication attempts. With a CVSS score of 7.5, this vulnerability is considered high severity due to its network-based attack vector, low attack complexity, and potential for partial compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.2.5CPE matchmatch criteria
cpe:2.3:a:mod_authnz_external_project:mod_authnz_external:*:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

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
5.66%
Probability of exploitation in next 30 days
EPSS Percentile
92.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0566 is in the 87th percentile among its peer group of 51,485 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

anders.fix.no / software
Third Party Advisory
bugs.debian.org / cgi-bin/bugreport.cgi
Issue TrackingPatchThird Party Advisory
code.google.com / p/mod-auth-external/issues/detail
Third Party Advisory
secunia.com / advisories/45240
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/68799
Third Party AdvisoryVDB Entry
debian.org / security/2011/dsa-2279
Third Party Advisory
openwall.com / lists/oss-security/2011/07/12/10
Mailing ListPatchThird Party Advisory
openwall.com / lists/oss-security/2011/07/12/17
Mailing ListPatchThird Party Advisory
securityfocus.com / bid/48653
Third Party AdvisoryVDB Entry