CVE-2026-88418
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
CMSimple 5.24 ships with CSRF protection disabled by default, which turns csrfProtection() into a no-op on every state-changing admin request, and it does not send the csrf_token hidden field in admin forms. Because administrator authentication is cookie-only
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I. Basic Information for CVE-2026-88418
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
CMSimple 5.24 ships with CSRF protection disabled by default, which turns csrfProtection() into a no-op on every state-changing admin request, and it does not send the csrf_token hidden field in admin forms. Because administrator authentication is cookie-only and no CSRF token is enforced, an unauthenticated attacker can induce a logged-in administrator's browser to issue a forged content-save request with a text payload containing a scripting marker. The marker is stored verbatim into content/content.php; on every subsequent page view evaluate_cmsimple_scripting() (functions.php) executes the marker body with PHP eval() — for all visitors, including unauthenticated ones. This yields persistent remote code execution on the web server.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2026-88418
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-88418 (1)
Same Patch Batch · n/a · 2026-09-22 · 21 CVEs total
| CVE-2026-94490 | 4.7 MEDIUM | OctoPrint Command API system.py executeSystemCommand os command injection |
| CVE-2026-88414 | CVE-2026-88414 | |
| CVE-2026-88350 | CVE-2026-88350 | |
| CVE-2026-88341 | CVE-2026-88341 | |
| CVE-2026-88340 | CVE-2026-88340 | |
| CVE-2026-88345 | CVE-2026-88345 | |
| CVE-2026-88344 | CVE-2026-88344 | |
| CVE-2026-75432 | CVE-2026-75432 | |
| CVE-2026-37603 | CVE-2026-37603 | |
| CVE-2026-37604 | CVE-2026-37604 | |
| CVE-2026-79311 | CVE-2026-79311 | |
| CVE-2026-88339 | CVE-2026-88339 | |
| CVE-2026-88416 | CVE-2026-88416 | |
| CVE-2026-88415 | CVE-2026-88415 | |
| CVE-2026-88419 | CVE-2026-88419 | |
| CVE-2026-88624 | CVE-2026-88624 | |
| CVE-2026-79314 | CVE-2026-79314 | |
| CVE-2026-79313 | CVE-2026-79313 | |
| CVE-2026-79312 | CVE-2026-79312 | |
| CVE-2026-79315 | CVE-2026-79315 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-88418
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