CVE-2026-59544

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-23. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

Unauthenticated PHP Object Injection in Thrive Quiz Builder <= 10.9.3.0 versions.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

July 23, 2026

Last Modified

July 23, 2026

Advisory Details (1)

Auto-updated Jul 25, 2026
No patch confirmed yet.
generic

PHP Object Injection in WordPress Thrive Quiz Builder Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/thrive-quiz-builder/vulnerability/wordpress-thrive-quiz-builder-plugin-10-9-3-0-php-object-injection-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-59544(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 / 20× 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.

  1. 2026-07-27 14:14 UTCEPSS rescore
  2. 2026-07-27 10:54 UTCGHSA enrichment
  3. 2026-07-27 06:45 UTCGHSA enrichment
  4. 2026-07-27 02:31 UTCGHSA enrichment
  5. 2026-07-26 22:21 UTCGHSA enrichment
  6. 2026-07-26 18:11 UTCEG score recompute
  7. 2026-07-26 18:11 UTCGHSA enrichment
  8. 2026-07-26 14:54 UTCEPSS rescore
  9. 2026-07-26 14:54 UTCEPSS rescore
  10. 2026-07-26 13:55 UTCEG score recompute
  11. 2026-07-26 13:55 UTCGHSA enrichment
  12. 2026-07-26 09:45 UTCGHSA enrichment
  13. 2026-07-26 03:13 UTCEG score recompute
  14. 2026-07-26 03:13 UTCGHSA enrichment
  15. 2026-07-25 14:18 UTCEPSS rescore
  16. 2026-07-25 14:18 UTCEPSS rescore
  17. 2026-07-24 14:18 UTCEPSS rescore
  18. 2026-07-24 14:18 UTCEPSS rescore
  19. 2026-07-23 11:46 UTCEG score recompute
  20. 2026-07-23 11:39 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-59544?
CVE-2026-59544 is a critical vulnerability published on July 23, 2026. Unauthenticated PHP Object Injection in Thrive Quiz Builder <= 10.9.3.0 versions.
When was CVE-2026-59544 disclosed?
CVE-2026-59544 was first published in the National Vulnerability Database on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59544 actively exploited?
CVE-2026-59544 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 76.4% of all scored CVEs.
What is the CVSS score of CVE-2026-59544?
CVE-2026-59544 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-59544?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59544, 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-2026-59544

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