Vulnerability details

CVE-2026-55572

e107inc e107

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

CVSS 3.1

10.0Critical

Official description

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 scores

Score	Version	Source	Vector
10.0Critical	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
e107inc	e107	< 2.3.7	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/e107inc/e107/security/advisories/GHSA-5f75-c25x-59wx x_refsource_CONFIRM
https://github.com/e107inc/e107/commit/120bd4bdbe18c8690c60a007ad6716e52e6ee965 x_refsource_MISC
https://github.com/e107inc/e107/releases/tag/v2.3.7 x_refsource_MISC

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Details

Published: 2026-10-14
Last updated: 2026-10-29
State: Published
Assigner (CNA): GitHub_M
Kolun priority: 26 · Low

Exploit prediction (EPSS)

0.51%

Probability of exploitation in 30 days

44.1%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-89
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')