CVE-2016-20083

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-06-15. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: Elevated riskExposed: 0

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

WordPress More Fields Plugin 2.1 contains a cross-site request forgery vulnerability that allows attackers to perform unauthorized actions by disabling CSRF token validation. Attackers can craft malicious web pages that trick logged-in administrators into adding or deleting custom fields and boxes on the Write/Edit page via POST and GET requests to the options-general.php endpoint.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
55(Attend)
EG Risk 55/100SSVC: Attend

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
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

June 15, 2026

Last Modified

June 15, 2026

Advisory Details (3)

Auto-updated Jun 15, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

WordPress More Fields Plugin 2.1 Cross-Site Request Forgery | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wordpress-more-fields-plugin-cross-site-request-forgery
generic🟡 PoC Available

WordPress Plugin More Fields 2.1 - Cross-Site Request Forgery - PHP webapps Exploit

https://www.exploit-db.com/exploits/39507
generic

[More Fields] Support | WordPress.org

https://wordpress.org/support/plugin/more-fields

Vendor Advisories for CVE-2016-20083(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 73× 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 168 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2016-20083?
CVE-2016-20083 is a medium vulnerability published on June 15, 2026. WordPress More Fields Plugin 2.1 contains a cross-site request forgery vulnerability that allows attackers to perform unauthorized actions by disabling CSRF token validation. Attackers can craft malicious web pages that trick logged-in administrators into adding or deleting custom fields and boxes…
When was CVE-2016-20083 disclosed?
CVE-2016-20083 was first published in the National Vulnerability Database on June 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-20083 actively exploited?
CVE-2016-20083 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 96.8% of all scored CVEs.
What is the CVSS score of CVE-2016-20083?
CVE-2016-20083 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2016-20083?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-20083, 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.

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