Authentication Bypass by Primary Weakness in adodb/adodb
Priority MEDIUM 43CWE-305Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-287.
Summary
Authentication Bypass by Primary Weakness in GitHub repository adodb/adodb prior to 5.20.21.
Why it matters now
EPSS 0.0217 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed adodb/adodb (adodb): 5.20.21adodb/adodb-php (Packagist): 5.20.21, 5.21.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ADOdb | adodb/adodb | before 5.20.21 | 5.20.21 | Patch available | CNA |
| — | adodb/adodb-php (Packagist) | before 5.20.21 | 5.20.21 | Patch available | GHSA-65mj-7c86-79jf |
| — | adodb/adodb-php (Packagist) | 5.21.0 to before 5.21.4 | 5.21.4 | Patch available | GHSA-65mj-7c86-79jf |
- adodb/adodb VendorADOdb Affected before 5.20.21 Fixed in 5.20.21 Patch available CNA
- adodb/adodb-php (Packagist) Vendor— Affected before 5.20.21 Fixed in 5.20.21 Patch available GHSA-65mj-7c86-79jf
- adodb/adodb-php (Packagist) Vendor— Affected 5.21.0 to before 5.21.4 Fixed in 5.21.4 Patch available GHSA-65mj-7c86-79jf
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:adodb_project:adodb:*:*:*:*:*:*:*:* | up to 5.20.21 | Vulnerable | Adodb Project |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
- cpe:2.3:a:adodb_project:adodb:*:*:*:*:*:*:*:* Versions up to 5.20.21 Vulnerable ·Adodb Project
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
Remediation
- Fix · CNA adodb/adodb (adodb) Fixed in 5.20.21
- Fix · GHSA-65mj-7c86-79jf adodb/adodb-php (Packagist) Fixed in 5.20.21 Advisory →
- Fix · GHSA-65mj-7c86-79jf adodb/adodb-php (Packagist) Fixed in 5.21.4 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3850
- 2026-10-03 Alias added: GHSA-65mj-7c86-79jf
References
Advisory 3
Other 5
More ADOdb vulnerabilities
- TI-2025-33962 ADOdb's sqlite3 driver allows SQL injection CVSS 3.1CRITICAL 10.0
- TI-2025-29078 SQL injection in ADOdb PostgreSQL driver pg_insert_id() method CVSS 3.1CRITICAL 10.0
Sources
- CVE-2021-3850 · CVE Program
- CVE-2021-3850 · NVD
- FIRST EPSS
- GHSA-65mj-7c86-79jf · GitHub Advisory Database · CC BY 4.0
- CVE-2021-3850 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences