CVE-2023-5559

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2023-11-27. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 9.1Exploit: Elevated riskExposed: 0

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

The 10Web Booster WordPress plugin before 2.24.18 does not validate the option name given to some AJAX actions, allowing unauthenticated users to delete arbitrary options from the database, leading to denial of service.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
61(Track*)
EG Risk 61/100SSVC: 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
Severity91% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
3%
EPSS %ILE
85%
KEV
Not listed

Published

November 27, 2023

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Aug 1, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

10Web Booster < 2.24.18 – Unauthenticated Arbitrary Option Deletion | CVE 2023-5559 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/eba46f7d-e4db-400c-8032-015f21087bbf

Data Freshness Timeline

(refreshed 8× in last 7d / 40× 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 103 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

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

  • Nucleihttp/cves/2023/CVE-2023-5559.yaml
    First seen Jan 1, 2023

    10Web Booster < 2.24.18 - Unauthenticated Arbitrary Option Deletion

    Open source ↗

Frequently asked(5)

What is CVE-2023-5559?
CVE-2023-5559 is a critical vulnerability published on November 27, 2023. The 10Web Booster WordPress plugin before 2.24.18 does not validate the option name given to some AJAX actions, allowing unauthenticated users to delete arbitrary options from the database, leading to denial of service.
When was CVE-2023-5559 disclosed?
CVE-2023-5559 was first published in the National Vulnerability Database on November 27, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-5559 actively exploited?
CVE-2023-5559 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 15.0% of all scored CVEs.
What is the CVSS score of CVE-2023-5559?
CVE-2023-5559 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2023-5559?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-5559, 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

Explore the affected products and dependency analysis for CVE-2023-5559

Explore →

Is Your Infrastructure Affected by CVE-2023-5559?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs