CVE-2026-14900
Last modified
CVE-2026-14900 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The Cost Calculator Builder PRO plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.0.3 via the js_to_php function. This is due to insufficient sanitization of the orderDetails[*].originalValue field, which is injected verbatim into a calculator formula string passed to PHP eval() inside js_to_php(), with the regex allow-list in evaluateFormula() only filtering alphanumeric tokens and leaving non-word punctuation characters intact.
Description
The Cost Calculator Builder PRO plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.0.3 via the js_to_php function. This is due to insufficient sanitization of the orderDetails[*].originalValue field, which is injected verbatim into a calculator formula string passed to PHP eval() inside js_to_php(), with the regex allow-list in evaluateFormula() only filtering alphanumeric tokens and leaving non-word punctuation characters intact. This makes it possible for unauthenticated attackers to execute code on the server. The only authentication barrier is a nonce check, but the required nonce is publicly emitted on every front-end page via the wp_head hook, making it freely obtainable by unauthenticated visitors. Payloads must be non-word XOR gadgets to bypass sanitization.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| StylemixThemes | Cost Calculator Builder PRO | <= 4.0.3 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-14900?
How severe is CVE-2026-14900?
How do I fix CVE-2026-14900?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-14894The Super Forms – Drag & Drop Form Builder plugin for WordPr…9.8
- CVE-2026-14895String::Util versions before 1.36 for Perl are susceptible t…7.5
- CVE-2026-14896HashiCorp Nomad and Nomad Enterprise are vulnerable to a cro…4.2
- CVE-2026-14898The OpenAI Codex desktop app for macOS rendered remote image…6.5
- CVE-2026-14899The code to parse MIME headers for display when forwarding a…7.5
- CVE-2026-1490The Spam protection, Anti-Spam, FireWall by CleanTalk plugin…9.8
- CVE-2026-14902An open redirect in Ivanti Xtraction before version 2026.2.1…6.1
- CVE-2026-14903Path traversal in Ivanti Xtraction before version 2026.2.1 …6.5
- CVE-2026-14904AWS Research and Engineering Studio (RES) is an open-source …7.1
- CVE-2026-14906Pages with malicious titles could potentially allow saved PD…5.3
- CVE-2026-1491IBM Verify Identity Access Container 11.0 through 11.0.2 and…5.3
- CVE-2026-14919The ShopMonitor.io WordPress plugin before 1.2.0 does not p…9.8
Are you affected by CVE-2026-14900?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
