CVE-2018-20062
CriticalExploitedPublic exploitthinkphp/library/think/App.php allows remote attackers to execute arbitrary PHP code via crafted use of the filter parameter, as demonstrated by the s=index/\think\Request/input&filter=phpinfo&data=1 query string.
Published Dec 11, 2018 · Updated Jul 8, 2026
Key Facts
Patch immediately- CVE-2018-20062 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Nonecms (5none).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 12, 2019. Public exploit code is available.
- EPSS estimates a 100% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
100%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2018-20062 brief as a PDF
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Description
An issue was discovered in NoneCms V1.3. thinkphp/library/think/App.php allows remote attackers to execute arbitrary PHP code via crafted use of the filter parameter, as demonstrated by the s=index/\think\Request/input&filter=phpinfo&data=1 query string.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Nov 3, 2021 | May 3, 2022 | Not reported |
| Industry KEV feed | Jun 12, 2019 | May 3, 2022 | Not reported |
| CIRCL KEV | Nov 3, 2021 | May 3, 2022 | Not reported |
| ENISA EUVD | Nov 3, 2021 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Nonecms5none | 1.3.0 | n/a |
Timeline
Publicly disclosed
Dec 11, 2018
Added to Industry KEV feed
Jun 12, 2019
Added to CISA KEV
Nov 3, 2021
Added to CIRCL KEV
Nov 3, 2021
Added to ENISA EUVD
Nov 3, 2021
Last updated
Jul 8, 2026
References
- exploithttp://packetstormsecurity.com/files/157218/ThinkPHP-5.0.23-Remote-Code-Execution.html
- exploitVulnCheck exploitation report
- exploithttps://github.com/nangge/noneCms/issues/21
- exploitMSF thinkphp_rce.rb
- exploitVulnCheck exploitation report
FAQ
Common Questions.
An issue was discovered in NoneCms V1.3.
Affected: Nonecms (5none) versions 1.3.0. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 12, 2019.
Yes. It was added on Nov 3, 2021 with a federal remediation due date of May 3, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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