Brute force of OTP login codes in OTP Login & Register Woocommerce
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.
Summary
The OTP Login & Register Woocommerce WordPress plugin before 2.7.3 does not properly limit one-time password verification attempts (CWE-287). The attempt limit is tracked against a value the client supplies and can change freely, so the limit can be bypassed. An unauthenticated remote attacker can brute-force the short numeric login code and take over an account without its password. The references link a public exploit.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
The OTP Login & Register Woocommerce WordPress plugin before 2.7.3 does not adequately limit one-time-password verification attempts, because the attempt limit is tracked against a value the client itself supplies and can change freely, allowing an unauthenticated attacker to bypass the limit and brute-force the short numeric login code to take over an account without its password.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | OTP Login & Register Woocommerce | before 2.7.3 | 2.7.3 | Patch available | CNA |
- OTP Login & Register Woocommerce VendorUnknown Affected before 2.7.3 Fixed in 2.7.3 Patch available CNA
Remediation
Update OTP Login & Register Woocommerce to version 2.7.3 or later, which fixes this issue.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA OTP Login & Register Woocommerce (Unknown) Fixed in 2.7.3
Timeline
- 2026-10-16 Threatist record created from CVE-2026-110135
- 2026-10-16 Alias added: GHSA-qqhp-9fwp-9wqc
References
Sources
- CVE-2026-110135 · CVE Program
- CVE-2026-110135 · NVD
- FIRST EPSS
- GHSA-qqhp-9fwp-9wqc · 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