Captcha verification bypass in github.com/mojocn/base64Captcha
Priority LOW 24CWE-345Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-345.
Summary
When using the default implementation of Verify to check a Captcha, verification can be bypassed. For example, if the first parameter is a non-existent id, the second parameter is an empty string, and the third parameter is true, the function will always consider the Captcha to be correct.
Why it matters now
EPSS 0.00297 22nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed github.com/mojocn/base64Captcha (github.com/mojocn/base64Captcha): 1.3.6github.com/mojocn/base64Captcha (Go): 1.3.6
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 |
|---|---|---|---|---|---|
| github.com/mojocn/base64Captcha | github.com/mojocn/base64Captcha | before 1.3.6 | 1.3.6 | Patch available | CNA |
| — | github.com/mojocn/base64Captcha (Go) | before 1.3.6 | 1.3.6 | Patch available | GHSA-5mmw-p5qv-w3x5 |
- github.com/mojocn/base64Captcha Vendorgithub.com/mojocn/base64Captcha Affected before 1.3.6 Fixed in 1.3.6 Patch available CNA
- github.com/mojocn/base64Captcha (Go) Vendor— Affected before 1.3.6 Fixed in 1.3.6 Patch available GHSA-5mmw-p5qv-w3x5
Remediation
- Fix · CNA github.com/mojocn/base64Captcha (github.com/mojocn/base64Captcha) Fixed in 1.3.6
- Fix · GHSA-5mmw-p5qv-w3x5 github.com/mojocn/base64Captcha (Go) Fixed in 1.3.6 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-45292
- 2026-10-03 Alias added: GHSA-5mmw-p5qv-w3x5
References
Patch 2
Sources
- CVE-2023-45292 · CVE Program
- CVE-2023-45292 · NVD
- FIRST EPSS
- GHSA-5mmw-p5qv-w3x5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences