Missing authorization in Accept PayPal Payments using Contact Form 7
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 · CISA ADP. Fix status from CNA. Impact type from CWE-862.
Summary
The Accept PayPal Payments using Contact Form 7 WordPress plugin before 4.0.7 does not check authorization on one of its AJAX actions. Unauthenticated remote attackers can forge the stored transaction status of records and write that status metadata onto arbitrary posts. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
The Accept PayPal Payments using Contact Form 7 WordPress plugin before 4.0.7 does not perform any authorization or request-validation checks on one of its AJAX actions, allowing unauthenticated attackers to forge the stored transaction status of records and to write the Accept PayPal Payments using Contact Form 7 WordPress plugin before 4.0.7's status metadata onto arbitrary posts.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
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 | Accept PayPal Payments using Contact Form 7 | before 4.0.7 | 4.0.7 | Patch available | CNA |
- Accept PayPal Payments using Contact Form 7 VendorUnknown Affected before 4.0.7 Fixed in 4.0.7 Patch available CNA
Remediation
Update the Accept PayPal Payments using Contact Form 7 plugin to version 4.0.7 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Accept PayPal Payments using Contact Form 7 (Unknown) Fixed in 4.0.7
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Accept PayPal Payments using Contact Form 7 4.0.7
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-70273 Unauthenticated export exposes form submissions in Accept PayPal PaymentsPriority LOW 30
Timeline
- 2026-10-10 Threatist record created from CVE-2026-105989
- 2026-10-10 Alias added: GHSA-29vq-ff64-7939
- 2026-10-11 CVSS score added · CISA ADP
- 2026-10-11 Weakness changed · CISA ADP
- 2026-10-11 CISA SSVC decision points changed
References
Sources
- CVE-2026-105989 · CVE Program
- CVE-2026-105989 · NVD
- FIRST EPSS
- GHSA-29vq-ff64-7939 · 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