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
8%
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 21× in last 7d / 62× 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. 2026-08-01 11:03 UTCEG score recompute
  2. 2026-08-01 11:02 UTCGHSA enrichment
  3. 2026-08-01 04:15 UTCEPSS rescore
  4. 2026-07-31 12:11 UTCEG score recompute
  5. 2026-07-31 12:11 UTCGHSA enrichment
  6. 2026-07-30 16:27 UTCEPSS rescore
  7. 2026-07-30 13:18 UTCEG score recompute
  8. 2026-07-30 13:18 UTCGHSA enrichment
  9. 2026-07-30 01:30 UTCEPSS rescore
  10. 2026-07-29 13:25 UTCEG score recompute
  11. 2026-07-29 13:25 UTCGHSA enrichment
  12. 2026-07-28 15:36 UTCEPSS rescore
  13. 2026-07-28 14:33 UTCEG score recompute
  14. 2026-07-28 14:32 UTCGHSA enrichment
  15. 2026-07-27 14:13 UTCEPSS rescore
  16. 2026-07-27 13:19 UTCEG score recompute
  17. 2026-07-27 13:19 UTCGHSA enrichment
  18. 2026-07-26 14:54 UTCEPSS rescore
  19. 2026-07-26 14:54 UTCEPSS rescore
  20. 2026-07-26 14:26 UTCEG score recompute
  21. 2026-07-26 14:26 UTCGHSA enrichment
  22. 2026-07-25 14:17 UTCEPSS rescore
  23. 2026-07-24 14:17 UTCEPSS rescore
  24. 2026-07-23 14:18 UTCEPSS rescore
  25. 2026-07-23 03:05 UTCEG score recompute
Show 51 more
  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 14:30 UTCEPSS rescore
  5. 2026-07-19 02:28 UTCEPSS rescore
  6. 2026-07-18 10:04 UTCEPSS rescore
  7. 2026-07-17 03:52 UTCGHSA enrichment
  8. 2026-07-16 17:02 UTCEPSS rescore
  9. 2026-07-16 04:58 UTCGHSA enrichment
  10. 2026-07-15 16:57 UTCEPSS rescore
  11. 2026-07-15 06:07 UTCGHSA enrichment
  12. 2026-07-15 02:00 UTCEPSS rescore
  13. 2026-07-14 06:52 UTCGHSA enrichment
  14. 2026-07-13 22:30 UTCEPSS rescore
  15. 2026-07-13 08:01 UTCGHSA enrichment
  16. 2026-07-13 06:12 UTCEPSS rescore
  17. 2026-07-12 09:08 UTCGHSA enrichment
  18. 2026-07-12 05:46 UTCEPSS rescore
  19. 2026-07-11 10:16 UTCGHSA enrichment
  20. 2026-07-11 08:27 UTCEPSS rescore
  21. 2026-07-10 11:24 UTCGHSA enrichment
  22. 2026-07-09 19:10 UTCEPSS rescore
  23. 2026-07-09 12:32 UTCGHSA enrichment
  24. 2026-07-08 15:15 UTCEPSS rescore
  25. 2026-07-08 15:15 UTCEPSS rescore
  26. 2026-07-08 13:40 UTCGHSA enrichment
  27. 2026-07-07 14:48 UTCGHSA enrichment
  28. 2026-07-07 13:46 UTCEPSS rescore
  29. 2026-07-06 16:27 UTCEPSS rescore
  30. 2026-07-06 15:51 UTCGHSA enrichment
  31. 2026-07-06 02:23 UTCEPSS rescore
  32. 2026-07-05 16:58 UTCGHSA enrichment
  33. 2026-07-05 02:30 UTCEPSS rescore
  34. 2026-07-05 02:30 UTCEPSS rescore
  35. 2026-07-04 18:06 UTCGHSA enrichment
  36. 2026-07-04 06:31 UTCEPSS rescore
  37. 2026-07-03 19:12 UTCGHSA enrichment
  38. 2026-07-02 20:20 UTCGHSA enrichment
  39. 2026-07-01 21:29 UTCGHSA enrichment
  40. 2026-07-01 15:06 UTCEPSS rescore
  41. 2026-07-01 15:06 UTCEPSS rescore
  42. 2026-06-30 23:22 UTCEPSS rescore
  43. 2026-06-30 22:38 UTCGHSA enrichment
  44. 2026-06-29 23:46 UTCGHSA enrichment
  45. 2026-06-29 00:52 UTCGHSA enrichment
  46. 2026-06-28 14:07 UTCEPSS rescore
  47. 2026-06-28 04:56 UTCEPSS rescore
  48. 2026-06-28 04:56 UTCEPSS rescore
  49. 2026-06-28 02:00 UTCGHSA enrichment
  50. 2026-06-27 03:08 UTCEG score recompute
  51. 2026-06-27 03:08 UTCNVD updatefirst tracked

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 92.3% 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

Explore the affected products and dependency analysis for CVE-2026-13422

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