CVE-2011-2688

CVE-2011-2688 is a high-severity vulnerability in Mod Authnz External Project Mod Authnz External with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Description

SQL injection vulnerability in mysql/mysql-auth.pl in the mod_authnz_external module 3.2.5 and earlier for the Apache HTTP Server allows remote attackers to execute arbitrary SQL commands via the user field.

Frequently asked questions

What is CVE-2011-2688?
SQL injection vulnerability in mysql/mysql-auth.pl in the mod_authnz_external module 3.2.5 and earlier for the Apache HTTP Server allows remote attackers to execute arbitrary SQL commands via the user field.
How severe is CVE-2011-2688?
CVE-2011-2688 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2011-2688 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2688?
CVE-2011-2688 primarily affects Mod Authnz External Project Mod Authnz External. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2688?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2011-2688 published?
CVE-2011-2688 was published on 2011-07-28 and last updated on 2026-06-16.

References

Affected products (4)

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Threat intelligence

Threat-intel indicators referencing this CVE: