by Kastro
Paper/Archive/CVE-2026-55572

CVE-2026-55572

e107inc e107 — e107: SQL injection in alt_auth plugin (otherdb / e107db backends) via login username

EPSS 0.5%CVSS 10.0
critical.is priorityof 100
39
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 43.8.438 × 208.8No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
e107< 2.3.7–CNA

Scores by source

GitHub_M (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/e107inc/e107/security/advisories/GHSA-5f75-c25x-59wxrefgithub.com/e107inc/e107/commit/120bd4bdbe18c8690c60a007ad6716e52e6ee965refgithub.com/e107inc/e107/releases/tag/v2.3.7