CVE-2026-13422

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH 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
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 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(high)
EPSS
7.6%
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 22× in last 7d / 33× 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. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 15:51 UTCEG score recompute
  3. 2026-07-06 15:51 UTCGHSA enrichment
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 16:58 UTCEG score recompute
  6. 2026-07-05 16:58 UTCGHSA enrichment
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 18:06 UTCEG score recompute
  10. 2026-07-04 18:06 UTCGHSA enrichment
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-03 19:12 UTCEG score recompute
  13. 2026-07-03 19:12 UTCGHSA enrichment
  14. 2026-07-02 20:20 UTCEG score recompute
  15. 2026-07-02 20:20 UTCGHSA enrichment
  16. 2026-07-01 21:29 UTCEG score recompute
  17. 2026-07-01 21:29 UTCGHSA enrichment
  18. 2026-07-01 15:06 UTCEPSS rescore
  19. 2026-07-01 15:06 UTCEPSS rescore
  20. 2026-06-30 23:22 UTCEPSS rescore
  21. 2026-06-30 22:38 UTCEG score recompute
  22. 2026-06-30 22:38 UTCGHSA enrichment
  23. 2026-06-29 23:46 UTCEG score recompute
  24. 2026-06-29 23:46 UTCGHSA enrichment
  25. 2026-06-29 00:52 UTCEG score recompute
Show 8 more
  1. 2026-06-29 00:52 UTCGHSA enrichment
  2. 2026-06-28 14:07 UTCEPSS rescore
  3. 2026-06-28 04:56 UTCEPSS rescore
  4. 2026-06-28 04:56 UTCEPSS rescore
  5. 2026-06-28 02:00 UTCEG score recompute
  6. 2026-06-28 02:00 UTCGHSA enrichment
  7. 2026-06-27 03:08 UTCEG score recompute
  8. 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 7.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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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