CVE-2018-20463

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 13%CVSS: 7.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An issue was discovered in the JSmol2WP plugin 1.07 for WordPress. There is an arbitrary file read vulnerability via ../ directory traversal in query=php://filter/resource= in the jsmol.php query string. This can also be used for SSRF.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
54(Track)
EG Risk 54/100SSVC: Track

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
Severity75% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
13%
EPSS %ILE
96%
KEV
Not listed

Published

December 25, 2018

Last Modified

November 21, 2024

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 42× 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.

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

Publicly available exploits

(2 references)

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

  • GitHub PoCHenry4E36/CVE-2018-20463
    First seen Aug 22, 2022

    WordPress JSmol2WP Plugin 1.07版本中存在安全漏洞。攻击者可利用该漏洞读取任意文件。

    Open source ↗
  • Nucleihttp/cves/2018/CVE-2018-20463.yaml
    First seen Jan 1, 2018

    WordPress JSmol2WP <=1.07 - Local File Inclusion

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-20463?
CVE-2018-20463 is a high vulnerability published on December 25, 2018. An issue was discovered in the JSmol2WP plugin 1.07 for WordPress. There is an arbitrary file read vulnerability via ../ directory traversal in query=php://filter/resource= in the jsmol.php query string. This can also be used for SSRF.
When was CVE-2018-20463 disclosed?
CVE-2018-20463 was first published in the National Vulnerability Database on December 25, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-20463 actively exploited?
CVE-2018-20463 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13% probability of exploitation in the next 30 days, which ranks it in the top 4.1% of all scored CVEs.
What is the CVSS score of CVE-2018-20463?
CVE-2018-20463 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2018-20463?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-20463, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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