CVE-2018-20062

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Exploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 100%CVSS: 9.8Exploit: cisa kev · ssvc active · Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
9.8
EG Score
9.8CRITICALhigh confidence
EG Risk
99
EG Risk 99/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
CISA SSVC: Attend at low mission impact; Act at medium or high.
Action: A fix is available. Apply it sooner than your standard update timelines at low mission impact and as soon as possible at medium or high.
EPSS PROB
100%
EPSS %ILE
99th
KEV
⚠ Exploited

CISA SSVCAttend at low mission impact; Act at medium or high.

A fix is available. Apply it sooner than your standard update timelines at low mission impact and as soon as possible at medium or high.

Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

December 11, 2018

Last Modified

November 7, 2025

Advisory Details (2)

Auto-updated Oct 1, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-20062
generic

Packet Storm - Human Validation

http://packetstormsecurity.com/files/157218/ThinkPHP-5.0.23-Remote-Code-Execution.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 41× in last 7d / 194× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 814 total refreshes for this CVE.

  1. 2026-10-06 00:56 UTCGHSA enrichment
  2. 2026-10-05 20:46 UTCGHSA enrichment
  3. 2026-10-05 16:35 UTCGHSA enrichment
  4. 2026-10-05 12:24 UTCGHSA enrichment
  5. 2026-10-05 08:14 UTCGHSA enrichment
  6. 2026-10-05 04:03 UTCGHSA enrichment
  7. 2026-10-04 23:49 UTCGHSA enrichment
  8. 2026-10-04 19:39 UTCGHSA enrichment
  9. 2026-10-04 15:29 UTCGHSA enrichment
  10. 2026-10-04 11:18 UTCGHSA enrichment
  11. 2026-10-04 07:06 UTCGHSA enrichment
  12. 2026-10-04 02:55 UTCGHSA enrichment
  13. 2026-10-03 22:45 UTCGHSA enrichment
  14. 2026-10-03 18:34 UTCGHSA enrichment
  15. 2026-10-03 14:20 UTCGHSA enrichment
  16. 2026-10-03 10:10 UTCGHSA enrichment
  17. 2026-10-03 05:59 UTCGHSA enrichment
  18. 2026-10-03 01:48 UTCGHSA enrichment
  19. 2026-10-02 21:37 UTCGHSA enrichment
  20. 2026-10-02 17:27 UTCGHSA enrichment
  21. 2026-10-02 13:16 UTCGHSA enrichment
  22. 2026-10-02 09:05 UTCGHSA enrichment
  23. 2026-10-02 04:54 UTCGHSA enrichment
  24. 2026-10-02 00:42 UTCGHSA enrichment
  25. 2026-10-01 20:28 UTCGHSA enrichment
Show 75 more
  1. 2026-10-01 16:16 UTCGHSA enrichment
  2. 2026-10-01 12:05 UTCGHSA enrichment
  3. 2026-10-01 07:55 UTCGHSA enrichment
  4. 2026-10-01 03:44 UTCGHSA enrichment
  5. 2026-09-30 23:34 UTCGHSA enrichment
  6. 2026-09-30 19:23 UTCGHSA enrichment
  7. 2026-09-30 15:13 UTCGHSA enrichment
  8. 2026-09-30 11:01 UTCGHSA enrichment
  9. 2026-09-30 06:48 UTCGHSA enrichment
  10. 2026-09-30 02:37 UTCGHSA enrichment
  11. 2026-09-29 22:26 UTCGHSA enrichment
  12. 2026-09-29 18:16 UTCEG score recompute
  13. 2026-09-29 18:16 UTCGHSA enrichment
  14. 2026-09-29 14:04 UTCGHSA enrichment
  15. 2026-09-29 09:53 UTCGHSA enrichment
  16. 2026-09-29 05:42 UTCGHSA enrichment
  17. 2026-09-29 01:31 UTCEG score recompute
  18. 2026-09-29 01:31 UTCGHSA enrichment
  19. 2026-09-28 21:21 UTCGHSA enrichment
  20. 2026-09-28 17:09 UTCGHSA enrichment
  21. 2026-09-28 12:58 UTCGHSA enrichment
  22. 2026-09-28 08:48 UTCGHSA enrichment
  23. 2026-09-28 04:37 UTCGHSA enrichment
  24. 2026-09-28 00:26 UTCGHSA enrichment
  25. 2026-09-27 21:51 UTCCISA KEV update
  26. 2026-09-27 20:15 UTCGHSA enrichment
  27. 2026-09-27 16:04 UTCGHSA enrichment
  28. 2026-09-27 11:54 UTCGHSA enrichment
  29. 2026-09-27 07:44 UTCGHSA enrichment
  30. 2026-09-27 03:32 UTCGHSA enrichment
  31. 2026-09-26 23:19 UTCGHSA enrichment
  32. 2026-09-26 19:04 UTCGHSA enrichment
  33. 2026-09-26 14:50 UTCGHSA enrichment
  34. 2026-09-26 10:38 UTCGHSA enrichment
  35. 2026-09-26 06:24 UTCGHSA enrichment
  36. 2026-09-26 02:12 UTCGHSA enrichment
  37. 2026-09-25 22:00 UTCGHSA enrichment
  38. 2026-09-25 19:35 UTCCISA KEV update
  39. 2026-09-25 17:49 UTCGHSA enrichment
  40. 2026-09-25 14:55 UTCCISA KEV update
  41. 2026-09-25 13:39 UTCGHSA enrichment
  42. 2026-09-25 09:27 UTCGHSA enrichment
  43. 2026-09-25 05:16 UTCGHSA enrichment
  44. 2026-09-25 01:06 UTCGHSA enrichment
  45. 2026-09-24 20:55 UTCGHSA enrichment
  46. 2026-09-24 19:31 UTCCISA KEV update
  47. 2026-09-24 16:44 UTCGHSA enrichment
  48. 2026-09-24 12:34 UTCGHSA enrichment
  49. 2026-09-24 08:23 UTCGHSA enrichment
  50. 2026-09-24 04:13 UTCGHSA enrichment
  51. 2026-09-24 00:01 UTCGHSA enrichment
  52. 2026-09-23 19:51 UTCGHSA enrichment
  53. 2026-09-23 15:40 UTCGHSA enrichment
  54. 2026-09-23 11:30 UTCGHSA enrichment
  55. 2026-09-23 07:19 UTCGHSA enrichment
  56. 2026-09-23 03:09 UTCGHSA enrichment
  57. 2026-09-22 22:58 UTCGHSA enrichment
  58. 2026-09-22 19:36 UTCCISA KEV update
  59. 2026-09-22 18:47 UTCEG score recompute
  60. 2026-09-22 18:47 UTCGHSA enrichment
  61. 2026-09-22 14:37 UTCGHSA enrichment
  62. 2026-09-22 10:25 UTCGHSA enrichment
  63. 2026-09-22 06:14 UTCGHSA enrichment
  64. 2026-09-22 02:03 UTCGHSA enrichment
  65. 2026-09-21 21:52 UTCEG score recompute
  66. 2026-09-21 21:52 UTCGHSA enrichment
  67. 2026-09-21 19:09 UTCCISA KEV update
  68. 2026-09-21 17:42 UTCGHSA enrichment
  69. 2026-09-21 13:31 UTCGHSA enrichment
  70. 2026-09-21 09:20 UTCGHSA enrichment
  71. 2026-09-21 05:09 UTCGHSA enrichment
  72. 2026-09-21 00:58 UTCGHSA enrichment
  73. 2026-09-20 20:47 UTCEG score recompute
  74. 2026-09-20 20:47 UTCGHSA enrichment
  75. 2026-09-20 20:10 UTCEPSS rescore

Publicly available exploits

(6 references)

Working exploit code is in the public domain (1 Metasploit module) (3 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-48333✓ verified
    First seen Apr 16, 2020

    ThinkPHP - Multiple PHP Injection RCEs (Metasploit)

    Open source ↗
  • Metasploitexploit/unix/webapp/thinkphp_rce✓ verified
    First seen Dec 10, 2018

    ThinkPHP Multiple PHP Injection RCEs

    Open source ↗
  • GitHub PoCshenhui35/RedArrow
    First seen Sep 16, 2025

    RedArrow3.2 是一款用于渗透测试ThinkPHP 5.0.23 远程命令执行漏洞(CVE-2018-20062)的图形化工具。

    Open source ↗
  • GitHub PoCyilin1203/CVE-2018-20062
    First seen Nov 7, 2022
    Open source ↗
  • GitHub PoCNS-Sp4ce/thinkphp5.XRce
    First seen Mar 17, 2019

    thinkphp5.*Rce CVE-2018-20062

    Open source ↗
  • Nucleihttp/cves/2018/CVE-2018-20062.yaml
    First seen Jan 1, 2018

    ThinkPHP 5.0.23 - Remote Code Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2018-20062?
CVE-2018-20062 is a critical vulnerability published on December 11, 2018. 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.
When was CVE-2018-20062 disclosed?
CVE-2018-20062 was first published on December 11, 2018, with the most recent update on November 7, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-20062 actively exploited?
Yes. CISA added CVE-2018-20062 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting ThinkPHP noneCms. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2018-20062?
CVE-2018-20062 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2018-20062?
CVE-2018-20062 affects ThinkPHP noneCms.
How do I remediate CVE-2018-20062?
A fix for CVE-2018-20062 is available: update to the fixed version the vendor names in its advisory.

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