CVE-2026-16055

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 week
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: None knownExposed: 0

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

The Contest Gallery WordPress plugin before 30.0.7 does not route its front-end login through the standard WordPress authentication flow, issuing an authentication cookie directly after the password check, which bypasses installed brute-force-protection and two-factor-authentication Contest Gallery WordPress plugin before 30.0.7 and enables unlimited, unthrottled password guessing against any account (including administrators) up to full account takeover.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
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

Contest Gallery < 30.0.7 – Unauthenticated Login-Protection and 2FA Bypass via post_cg_login | CVE 2026-16055 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/fa83e5a0-ed6a-4043-8df3-8654bb354a99/

Vendor Advisories for CVE-2026-16055(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 27× 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. 2026-08-21 02:41 UTCEG score recompute
  2. 2026-08-21 02:41 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 14:20 UTCGHSA enrichment
  5. 2026-08-20 00:37 UTCEG score recompute
  6. 2026-08-20 00:37 UTCGHSA enrichment
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-19 12:17 UTCGHSA enrichment
  9. 2026-08-18 23:58 UTCEG score recompute
  10. 2026-08-18 23:58 UTCGHSA enrichment
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 11:38 UTCGHSA enrichment
  13. 2026-08-17 23:19 UTCEG score recompute
  14. 2026-08-17 23:19 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 10:59 UTCGHSA enrichment
  17. 2026-08-16 22:40 UTCEG score recompute
  18. 2026-08-16 22:40 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 10:20 UTCEG score recompute
  21. 2026-08-16 10:20 UTCGHSA enrichment
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 22:01 UTCGHSA enrichment
  24. 2026-08-15 09:41 UTCEG score recompute
  25. 2026-08-15 09:41 UTCGHSA enrichment
Show 43 more
  1. 2026-08-15 01:30 UTCEPSS rescore
  2. 2026-08-14 21:21 UTCGHSA enrichment
  3. 2026-08-14 08:59 UTCEG score recompute
  4. 2026-08-14 08:59 UTCGHSA enrichment
  5. 2026-08-13 22:00 UTCEPSS rescore
  6. 2026-08-13 20:39 UTCGHSA enrichment
  7. 2026-08-13 08:19 UTCGHSA enrichment
  8. 2026-08-12 20:00 UTCEG score recompute
  9. 2026-08-12 20:00 UTCGHSA enrichment
  10. 2026-08-12 13:50 UTCEPSS rescore
  11. 2026-08-12 07:41 UTCGHSA enrichment
  12. 2026-08-11 19:21 UTCEG score recompute
  13. 2026-08-11 19:21 UTCGHSA enrichment
  14. 2026-08-11 13:42 UTCEPSS rescore
  15. 2026-08-11 07:01 UTCEG score recompute
  16. 2026-08-11 07:01 UTCGHSA enrichment
  17. 2026-08-11 00:00 UTCEPSS rescore
  18. 2026-08-10 18:42 UTCGHSA enrichment
  19. 2026-08-10 06:23 UTCGHSA enrichment
  20. 2026-08-09 18:03 UTCEG score recompute
  21. 2026-08-09 18:03 UTCGHSA enrichment
  22. 2026-08-09 13:46 UTCEPSS rescore
  23. 2026-08-09 05:44 UTCGHSA enrichment
  24. 2026-08-08 17:25 UTCEG score recompute
  25. 2026-08-08 17:25 UTCGHSA enrichment
  26. 2026-08-08 16:37 UTCEPSS rescore
  27. 2026-08-08 05:05 UTCGHSA enrichment
  28. 2026-08-07 16:46 UTCEG score recompute
  29. 2026-08-07 16:46 UTCGHSA enrichment
  30. 2026-08-07 04:26 UTCGHSA enrichment
  31. 2026-08-06 16:06 UTCEG score recompute
  32. 2026-08-06 16:06 UTCGHSA enrichment
  33. 2026-08-06 13:46 UTCEPSS rescore
  34. 2026-08-06 03:47 UTCEG score recompute
  35. 2026-08-06 03:47 UTCGHSA enrichment
  36. 2026-08-05 19:17 UTCEPSS rescore
  37. 2026-08-05 15:27 UTCGHSA enrichment
  38. 2026-08-05 14:37 UTCEG score recompute▲ 7.50
  39. 2026-08-05 14:36 UTCGHSA enrichment
  40. 2026-08-05 14:35 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-2026-16055?
CVE-2026-16055 is a high vulnerability published on August 5, 2026. The Contest Gallery WordPress plugin before 30.0.7 does not route its front-end login through the standard WordPress authentication flow, issuing an authentication cookie directly after the password check, which bypasses installed brute-force-protection and two-factor-authentication Contest Gallery…
When was CVE-2026-16055 disclosed?
CVE-2026-16055 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-2026-16055 actively exploited?
CVE-2026-16055 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 76.8% of all scored CVEs.
What is the CVSS score of CVE-2026-16055?
CVE-2026-16055 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-16055?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16055, 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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