Critical 10.0Published Oct 14, 2026

CVE-2026-55572e107: SQL injection in alt_auth plugin (otherdb / e107db backends) via login username

Updated under an hour ago (2026-10-19 08:30 UTC)

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It affects e107inc e107. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.52%, higher than 43% of scored CVEs.

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Every CVE for e107inc e107

Exploited in the last 30 days

e107 is a content management system (CMS). Prior to 2.3.7, the bundled alt_auth plugin's otherdb and e107db authentication backends interpolate the submitted login username directly into SQL in e107_plugins/alt_auth/otherdb_auth.php and e107_plugins/alt_auth/e107db_auth.php. The login() methods execute those strings with PDO::query() before effective sanitization, so an unauthenticated user can inject SQL when alt_auth is installed and either backend is configured with a live external database connection. The injection can expose or modify data available to the configured database account, and query failures can additionally disclose the generated query through the debug-message path. This issue is fixed in version 2.3.7.

CVSS: 10.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-89
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.52% (percentile 43)
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

e107inc e107 e107inc:e107 (from the name)	before 2.3.7	CNA record

References

https://github.com/e107inc/e107/security/advisories/GHSA-5f75-c25x-59wxx-refsource-confirm
https://github.com/e107inc/e107/commit/120bd4bdbe18c8690c60a007ad6716e52e6ee965x-refsource-misc
https://github.com/e107inc/e107/releases/tag/v2.3.7x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.