CVE-2026-57621

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-02. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.

CVSS v3
9.8
EG Score
9.8(high)
EPSS
25.6%
KEV
Not listed

Published

July 2, 2026

Last Modified

July 2, 2026

Advisory Details (1)

Auto-updated Jul 2, 2026
No patch confirmed yet.
generic

PHP Object Injection in WordPress Booktics Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/booktics/vulnerability/wordpress-booktics-plugin-1-0-21-php-object-injection-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-57621(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 66× in last 7d / 66× 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. 2026-07-07 07:27 UTCEG score recompute
  2. 2026-07-07 07:26 UTCGHSA enrichment
  3. 2026-07-07 03:20 UTCEG score recompute
  4. 2026-07-07 03:20 UTCGHSA enrichment
  5. 2026-07-06 23:15 UTCEG score recompute
  6. 2026-07-06 23:15 UTCGHSA enrichment
  7. 2026-07-06 19:10 UTCEG score recompute
  8. 2026-07-06 19:10 UTCGHSA enrichment
  9. 2026-07-06 16:27 UTCEPSS rescore
  10. 2026-07-06 16:27 UTCEPSS rescore
  11. 2026-07-06 15:05 UTCEG score recompute
  12. 2026-07-06 15:04 UTCGHSA enrichment
  13. 2026-07-06 10:56 UTCEG score recompute
  14. 2026-07-06 10:56 UTCGHSA enrichment
  15. 2026-07-06 06:33 UTCEG score recompute
  16. 2026-07-06 06:33 UTCGHSA enrichment
  17. 2026-07-06 02:28 UTCEG score recompute
  18. 2026-07-06 02:27 UTCGHSA enrichment
  19. 2026-07-06 02:23 UTCEPSS rescore
  20. 2026-07-06 02:23 UTCEPSS rescore
  21. 2026-07-05 22:23 UTCEG score recompute
  22. 2026-07-05 22:22 UTCGHSA enrichment
  23. 2026-07-05 18:16 UTCEG score recompute
  24. 2026-07-05 18:16 UTCGHSA enrichment
  25. 2026-07-05 14:10 UTCEG score recompute
Show 41 more
  1. 2026-07-05 14:09 UTCGHSA enrichment
  2. 2026-07-05 10:04 UTCEG score recompute
  3. 2026-07-05 10:04 UTCGHSA enrichment
  4. 2026-07-05 05:57 UTCEG score recompute
  5. 2026-07-05 05:57 UTCGHSA enrichment
  6. 2026-07-05 02:31 UTCEPSS rescore
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-05 01:51 UTCEG score recompute
  9. 2026-07-05 01:51 UTCGHSA enrichment
  10. 2026-07-04 21:47 UTCEG score recompute
  11. 2026-07-04 21:46 UTCGHSA enrichment
  12. 2026-07-04 17:41 UTCEG score recompute
  13. 2026-07-04 17:41 UTCGHSA enrichment
  14. 2026-07-04 13:37 UTCEG score recompute
  15. 2026-07-04 13:37 UTCGHSA enrichment
  16. 2026-07-04 09:32 UTCEG score recompute
  17. 2026-07-04 09:32 UTCGHSA enrichment
  18. 2026-07-04 06:31 UTCEPSS rescore
  19. 2026-07-04 06:31 UTCEPSS rescore
  20. 2026-07-04 05:26 UTCEG score recompute
  21. 2026-07-04 05:26 UTCGHSA enrichment
  22. 2026-07-04 01:20 UTCEG score recompute
  23. 2026-07-04 01:20 UTCGHSA enrichment
  24. 2026-07-03 21:15 UTCEG score recompute
  25. 2026-07-03 21:15 UTCGHSA enrichment
  26. 2026-07-03 17:10 UTCEG score recompute
  27. 2026-07-03 17:10 UTCGHSA enrichment
  28. 2026-07-03 13:05 UTCEG score recompute
  29. 2026-07-03 13:05 UTCGHSA enrichment
  30. 2026-07-03 09:00 UTCEG score recompute
  31. 2026-07-03 09:00 UTCGHSA enrichment
  32. 2026-07-03 04:54 UTCEG score recompute
  33. 2026-07-03 04:54 UTCGHSA enrichment
  34. 2026-07-03 00:49 UTCEG score recompute
  35. 2026-07-03 00:49 UTCGHSA enrichment
  36. 2026-07-02 20:45 UTCEG score recompute
  37. 2026-07-02 20:45 UTCGHSA enrichment
  38. 2026-07-02 16:39 UTCEG score recompute
  39. 2026-07-02 16:39 UTCGHSA enrichment
  40. 2026-07-02 12:34 UTCEG score recompute
  41. 2026-07-02 12:34 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57621?
CVE-2026-57621 is a critical vulnerability published on July 2, 2026. Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.
When was CVE-2026-57621 disclosed?
CVE-2026-57621 was first published in the National Vulnerability Database on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57621 actively exploited?
CVE-2026-57621 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-57621?
CVE-2026-57621 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-57621?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57621, 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

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