CVE-2026-15210

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-05. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%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 OTP Login With Phone Number, OTP Verification WordPress plugin before 1.8.71 does not limit the number of OTP verification attempts or invalidate a one-time login code after a wrong guess, and an unauthenticated user can request a login code for any account. Because the code is a short numeric OTP, an attacker can brute-force it and take over any account, including an administrator's.

CVSS v3
9.1
EG Score
9.1(high)
EG Risk
72(Attend)
EG Risk 72/100SSVC: 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
Severity91% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 5, 2026

Advisory Details (1)

Auto-updated Aug 5, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Login/Signup with Phone Number, OTP Verification < 1.8.71 – Unauthenticated Account Takeover via OTP Brute Force | CVE 2026-15210 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/96101127-8b13-4770-9204-f540fb044040/

Vendor Advisories for CVE-2026-15210(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 53× in last 7d / 124× 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 124 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15210?
CVE-2026-15210 is a critical vulnerability published on August 5, 2026. The OTP Login With Phone Number, OTP Verification WordPress plugin before 1.8.71 does not limit the number of OTP verification attempts or invalidate a one-time login code after a wrong guess, and an unauthenticated user can request a login code for any account. Because the code is a short numeric…
When was CVE-2026-15210 disclosed?
CVE-2026-15210 was first published in the National Vulnerability Database on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15210 actively exploited?
CVE-2026-15210 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 77.7% of all scored CVEs.
What is the CVSS score of CVE-2026-15210?
CVE-2026-15210 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-15210?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15210, 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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