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TI-2026-76068 Aliases CVE-2026-111110GHSA-xm8j-r35j-8pr2

Stored cross-site scripting in GetPaid WordPress plugin

Priority LOW 31CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The Payment forms, Buy now buttons, and Invoicing System | GetPaid plugin for WordPress is affected in all versions up to and including 2.8.61. Insufficient input sanitization and output escaping of the 'mmdwqzpoxadd' parameter let attackers store scripts (CWE-79). An unauthenticated attacker can inject scripts that run when an administrator views the affected invoice's Payment Form Details metabox, because the required nonce is publicly emitted to all visitors.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The Payment forms, Buy now buttons, and Invoicing System | GetPaid plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'mmdwqzpoxadd' parameter in all versions up to, and including, 2.8.61 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The required nonce (getpaid_form_nonce) is publicly emitted to all visitors via wp_localize_script as WPInv.formNonce, meaning no authentication or prior nonce leak is needed; the stored payload fires when an administrator views the affected invoice's Payment Form Details metabox.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00278 20th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
stiofansislandPayment forms, Buy now buttons, and Invoicing System | GetPaidup to 2.8.61—No fix listedCNA
  • Payment forms, Buy now buttons, and Invoicing System | GetPaid Vendorstiofansisland Affected up to 2.8.61 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Payment forms, Buy now buttons, and Invoicing System | GetPaid.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-18 Threatist record created from CVE-2026-111110
  2. 2026-10-18 Alias added: GHSA-xm8j-r35j-8pr2

References

Other 8

  • TI-2026-11418 UsersWP <= 1.2.65 - Authenticated (Subscriber+) Arbitrary File Deletion via File Upload Field CVSS 3.1HIGH 8.8
  • TI-2026-10027 Events Calendar for GeoDirectory <= 2.3.28 - Authenticated (Subscriber+) Privilege Escalation CVSS 3.1HIGH 8.8
  • TI-2025-09182 SQL injection in stiofansisland UsersWP – Front-end login form, User Registration, User… CVSS 3.1MEDIUM 6.5
  • TI-2026-16210 UsersWP <= 1.2.70 - Authenticated (Subscriber+) Arbitrary File Deletion CVSS 3.1HIGH 8.1
  • TI-2026-83502 Predictable password in UsersWP lets attackers access dummy accounts CVSS 3.1MEDIUM 6.5
  • TI-2026-14436 Payment forms, Buy now buttons, and Invoicing System | GetPaid <= 2.8.56 - Authenticated… CVSS 3.1MEDIUM 6.6
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences