CVE-2026-13422

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-06-27. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

The HD Quiz plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions 2.2.0 to 2.2.1. This is due to missing or incorrect nonce validation on the hdq_validate_nonce function. This makes it possible for unauthenticated attackers to delete or modify quizzes and questions, create new quizzes, and change plugin settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

June 27, 2026

Last Modified

June 29, 2026

References (16)

Vendor Advisories for CVE-2026-13422(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 8× in last 7d / 48× 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 156 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-13422?
CVE-2026-13422 is a medium vulnerability published on June 27, 2026. The HD Quiz plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions 2.2.0 to 2.2.1. This is due to missing or incorrect nonce validation on the hdqvalidatenonce function. This makes it possible for unauthenticated attackers to delete or modify quizzes and questions, create new…
When was CVE-2026-13422 disclosed?
CVE-2026-13422 was first published in the National Vulnerability Database on June 27, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13422 actively exploited?
CVE-2026-13422 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 82.2% of all scored CVEs.
What is the CVSS score of CVE-2026-13422?
CVE-2026-13422 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-13422?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13422, 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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