CVE-2026-16253

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

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

The Total Upkeep WordPress plugin before 1.17.3 does not adequately protect the secret that authorizes its backup-restore functionality and exposes it to unauthenticated users, allowing them to disclose sensitive backup information and to force a full site restore that overwrites the live site's files and database. This is an incomplete fix of CVE-2020-36848, as the protection added at the time never took effect on distributed copies of the plugin.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100CISA 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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend 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 at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
35th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend 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 at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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

August 12, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Aug 12, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Total Upkeep (BoldGrid Backup) < 1.17.3 – Unauthenticated Sensitive Data Disclosure and Forced Site Restore via Predictable cron_secret (regression of CVE-2020-36848) | CVE 2026-16253 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/97abf25a-48d4-4dfa-a7a3-de88455be7eb/

Vendor Advisories for CVE-2026-16253(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 20× in last 7d / 92× 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 186 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-16253?
CVE-2026-16253 is a high vulnerability published on August 12, 2026. The Total Upkeep WordPress plugin before 1.17.3 does not adequately protect the secret that authorizes its backup-restore functionality and exposes it to unauthenticated users, allowing them to disclose sensitive backup information and to force a full site restore that overwrites the live site's…
When was CVE-2026-16253 disclosed?
CVE-2026-16253 was first published on August 12, 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-2026-16253 actively exploited?
CVE-2026-16253 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-16253?
CVE-2026-16253 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-16253?
No fix for CVE-2026-16253 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-2026-16253 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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