CVE-2026-14820

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-07-27. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.3Exploit: 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 Quiz and Survey Master (QSM) WordPress plugin before 11.1.3 does not implement rate limiting or standard failed-login auditing on its front-end credential-check functionality and returns distinct responses for valid and invalid accounts, allowing unauthenticated attackers to enumerate valid usernames and to brute-force passwords while bypassing brute-force protection Quiz and Survey Master (QSM) WordPress plugin before 11.1.3.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
55
EG Risk 55/100CISA 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
Severity53% × 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
29th
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

July 27, 2026

Last Modified

July 27, 2026

Advisory Details (1)

Auto-updated Jul 27, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Quiz And Survey Master < 11.1.3 – Unauthenticated User Enumeration and Password Oracle via Quiz Login | CVE 2026-14820 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/22af8c73-8147-4205-8285-a35881f2d041/

Vendor Advisories for CVE-2026-14820(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 14× in last 7d / 61× 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 173 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-14820?
CVE-2026-14820 is a medium vulnerability published on July 27, 2026. The Quiz and Survey Master (QSM) WordPress plugin before 11.1.3 does not implement rate limiting or standard failed-login auditing on its front-end credential-check functionality and returns distinct responses for valid and invalid accounts, allowing unauthenticated attackers to enumerate valid…
When was CVE-2026-14820 disclosed?
CVE-2026-14820 was first published on July 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14820 actively exploited?
CVE-2026-14820 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-14820?
CVE-2026-14820 has a CVSS v3.1 base score of 5.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-14820?
No fix for CVE-2026-14820 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-2026-14820 are linked in the Vendor Advisories panel on this page.

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