Payment forms, Buy now buttons, and Invoicing System | GetPaid <= 2.8.61 - Unauthenticated Stored Cross-Site Scripting via 'mmdwqzpoxadd' Parameter
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- stiofansisland Payment forms, Buy now buttons, and Invoicing System | GetPaid
through 2.8.61
References 8
plugins.trac.wordpress.org
- browser/invoicing/tags/2.8.61/includes/admin/meta-boxes/class-mb-payment-form.php#L30
- browser/invoicing/tags/2.8.61/includes/payments/class-getpaid-checkout.php#L293
- browser/invoicing/tags/2.8.61/includes/payments/class-getpaid-checkout.php#L402
- browser/invoicing/tags/2.8.61/includes/payments/class-getpaid-payment-form-submission.php#L150
- browser/invoicing/tags/2.8.61/includes/class-wpinv-ajax.php#L359
- changeset/3750463/invoicing/trunk/includes/admin/meta-boxes/class-mb-payment-form.php