CVE-2026-19453

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.1Exploit: None knownExposed services: Not assessed

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

The JetBackup WordPress plugin before 3.1.23.5 does not verify the role or capabilities of the account it preserves across a restore or migration before granting it administrator privileges, allowing a subscriber-level user to gain administrator access after the site owner restores or migrates the site.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
32
EG Risk 32/100CISA 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
8th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (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

September 2, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Sep 2, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

JetBackup 3.1.7.9 – 3.1.23.3 – Subscriber+ Privilege Escalation via Restore Admin User Selection | CVE 2026-19453 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/82792fbb-36b3-4a90-a7a3-ddb2573e62f2/

Vendor Advisories for CVE-2026-19453(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 26× in last 7d / 109× 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 123 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-19453?
CVE-2026-19453 is a high vulnerability published on September 2, 2026. The JetBackup WordPress plugin before 3.1.23.5 does not verify the role or capabilities of the account it preserves across a restore or migration before granting it administrator privileges, allowing a subscriber-level user to gain administrator access after the site owner restores or migrates the…
When was CVE-2026-19453 disclosed?
CVE-2026-19453 was first published on September 2, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19453 actively exploited?
CVE-2026-19453 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19453?
CVE-2026-19453 has a CVSS v3.1 base score of 7.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-19453?
No fix for CVE-2026-19453 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-19453 are linked in the Vendor Advisories panel on this page.

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