CVE-2026-17605 — Payment forms, Buy now buttons, and Invoicing System | GetPaid <= 2.8.56 - Authenticated (Administrator+) Local File Inclusion via Payment Form 'type' Element Field
The Payment forms, Buy now buttons, and Invoicing System | GetPaid plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 2.8.56 via the getpaid_payment_form_element function. This makes it possible for authenticated attackers, with administrator-level access and above, to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- Technical severity (medium)+3
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Stiofansisland Payment forms, Buy now buttons, and Invoicing System | GetPaid).
- No fix documented in the sources: reduce exposure and monitor the vendor advisory.
- Search available logs for exploit probes matching the vulnerability class (injection), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Stiofansisland | Payment forms, Buy now buttons, and Invoicing System | GetPaid | ≤ 2.8.56 | Vulnerable | CVE Program (cve.org) e CISA ADP |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 6.6 | CVSS 3.1 | Medium | 0.7 | 5.9 | security@wordfence.com via NIST National Vulnerability Database |
| 6.6 | CVSS 3.1 | Medium | — | — | Wordfence via CVE Program (cve.org) e CISA ADP |
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H (score shown at the top: security@wordfence.com) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
- Look for parameters with command/query metacharacters and unexpected child processes of the service.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · stiofansisland/payment forms, buy now buttons, and invoicing system | getpaid
- SSVC assessment updated
- Record published
- CVSS changed · 6.6
- Source status changed · → Deferred
- Record created in this database
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 15, 2026 – Oct 15, 2026
References
10 on the record
- plugins.trac.wordpress.org/browser/invoicing/tags/2.8.54/includes/admin/class-getpaid-metaboxes.
- plugins.trac.wordpress.org/browser/invoicing/tags/2.8.56/includes/admin/meta-boxes/class-getpaid
- plugins.trac.wordpress.org/browser/invoicing/tags/2.8.54/includes/wpinv-template-functions.php
- plugins.trac.wordpress.org/browser/invoicing/tags/2.8.56/includes/wpinv-template-functions.php
- plugins.trac.wordpress.org/browser/invoicing/tags/2.8.54/includes/wpinv-template-functions.php
- plugins.trac.wordpress.org/browser/invoicing/tags/2.8.56/includes/admin/class-getpaid-metaboxes.
- github.com/AyeCode/invoicing/commit/80625ba90241840e46b0bc5400f100e6d38ee85c
- plugins.trac.wordpress.org/browser/invoicing/tags/2.8.54/includes/admin/meta-boxes/class-getpaid
- www.wordfence.com/threat-intel/vulnerabilities/id/baca279b-0c42-48a9-930a-8d0525066e0a
- plugins.trac.wordpress.org/browser/invoicing/tags/2.8.56/includes/wpinv-template-functions.php
Elsewhere on this site
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No FIRST EPSS score.
- No fixed version, patch or mitigation documented.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2026-17605 is "Payment forms, Buy now buttons, and Invoicing System | GetPaid <= 2.8.56 - Authenticated (Administrator+) Local File Inclusion via Payment Form 'type' Element Field", rated Medium. It affects Payment forms, Buy now buttons, and Invoicing System | GetPaid (Stiofansisland); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.6 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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