CVE-2026-16602

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-05. 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 a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

The Passster WordPress plugin before 4.3.6 does not perform a post-status check before returning post content from an unauthenticated REST endpoint, allowing unauthenticated users to disclose the content of non-public (draft, private, and pending) posts on sites that have a captcha provider configured.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: 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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
24%
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

Content Protector (Passster) < 4.3.6 – Unauthenticated Non-Public Post Content Disclosure via Captcha REST Endpoint | CVE 2026-16602 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/fcca0d1c-1a5b-4515-8182-d68f0759b978/

Vendor Advisories for CVE-2026-16602(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 28× in last 7d / 68× 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. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 20:01 UTCGHSA enrichment
  3. 2026-08-20 07:58 UTCGHSA enrichment
  4. 2026-08-19 19:55 UTCEG score recompute
  5. 2026-08-19 19:55 UTCGHSA enrichment
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 07:51 UTCGHSA enrichment
  8. 2026-08-18 19:48 UTCEG score recompute
  9. 2026-08-18 19:48 UTCGHSA enrichment
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-18 07:45 UTCGHSA enrichment
  12. 2026-08-17 19:33 UTCEG score recompute
  13. 2026-08-17 19:33 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 05:45 UTCGHSA enrichment
  16. 2026-08-16 17:40 UTCEG score recompute
  17. 2026-08-16 17:40 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 05:30 UTCEG score recompute
  20. 2026-08-16 05:30 UTCGHSA enrichment
  21. 2026-08-16 02:14 UTCEPSS rescore
  22. 2026-08-15 17:28 UTCGHSA enrichment
  23. 2026-08-15 05:25 UTCEG score recompute
  24. 2026-08-15 05:25 UTCGHSA enrichment
  25. 2026-08-15 01:30 UTCEPSS rescore
Show 43 more
  1. 2026-08-14 17:22 UTCGHSA enrichment
  2. 2026-08-14 05:19 UTCEG score recompute
  3. 2026-08-14 05:19 UTCGHSA enrichment
  4. 2026-08-13 22:00 UTCEPSS rescore
  5. 2026-08-13 17:16 UTCGHSA enrichment
  6. 2026-08-13 05:13 UTCGHSA enrichment
  7. 2026-08-12 17:11 UTCEG score recompute
  8. 2026-08-12 17:11 UTCGHSA enrichment
  9. 2026-08-12 13:50 UTCEPSS rescore
  10. 2026-08-12 05:08 UTCGHSA enrichment
  11. 2026-08-11 17:05 UTCEG score recompute
  12. 2026-08-11 17:05 UTCGHSA enrichment
  13. 2026-08-11 13:42 UTCEPSS rescore
  14. 2026-08-11 05:01 UTCEG score recompute
  15. 2026-08-11 05:01 UTCGHSA enrichment
  16. 2026-08-11 00:00 UTCEPSS rescore
  17. 2026-08-10 16:59 UTCGHSA enrichment
  18. 2026-08-10 04:56 UTCGHSA enrichment
  19. 2026-08-09 16:54 UTCEG score recompute
  20. 2026-08-09 16:54 UTCGHSA enrichment
  21. 2026-08-09 13:46 UTCEPSS rescore
  22. 2026-08-09 04:51 UTCGHSA enrichment
  23. 2026-08-08 16:49 UTCEG score recompute
  24. 2026-08-08 16:49 UTCGHSA enrichment
  25. 2026-08-08 16:37 UTCEPSS rescore
  26. 2026-08-08 04:46 UTCGHSA enrichment
  27. 2026-08-07 16:44 UTCEG score recompute
  28. 2026-08-07 16:44 UTCGHSA enrichment
  29. 2026-08-07 04:41 UTCGHSA enrichment
  30. 2026-08-06 16:38 UTCEG score recompute
  31. 2026-08-06 16:38 UTCGHSA enrichment
  32. 2026-08-06 13:46 UTCEPSS rescore
  33. 2026-08-06 04:34 UTCEG score recompute
  34. 2026-08-06 04:34 UTCGHSA enrichment
  35. 2026-08-05 19:17 UTCEPSS rescore
  36. 2026-08-05 16:31 UTCEG score recompute
  37. 2026-08-05 16:31 UTCGHSA enrichment
  38. 2026-08-05 15:26 UTCEG score recompute▲ 7.50
  39. 2026-08-05 15:26 UTCGHSA enrichment
  40. 2026-08-05 15:25 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  41. 2026-08-05 07:19 UTCNVD update
  42. 2026-08-05 06:20 UTCEG score recompute
  43. 2026-08-05 06:20 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16602?
CVE-2026-16602 is a high vulnerability published on August 5, 2026. The Passster WordPress plugin before 4.3.6 does not perform a post-status check before returning post content from an unauthenticated REST endpoint, allowing unauthenticated users to disclose the content of non-public (draft, private, and pending) posts on sites that have a captcha provider…
When was CVE-2026-16602 disclosed?
CVE-2026-16602 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-2026-16602 actively exploited?
CVE-2026-16602 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 75.5% of all scored CVEs.
What is the CVSS score of CVE-2026-16602?
CVE-2026-16602 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-16602?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16602, 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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