CVE-2026-6820

HIGHPre-NVD 7.27.2—
EchelonGraph scoreHIGH confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-07-08. a secondary CVSS source baseline 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.2Exploit: NoneExposed: 0

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

The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'email' parameter in all versions up to, and including, 1.8.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS v3
7.2
EG Score
7.2(high)
EPSS
13.6%
KEV
Not listed

Published

July 8, 2026

Last Modified

July 8, 2026

References (3)

Vendor Advisories for CVE-2026-6820(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 38× in last 7d / 42× 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. 2026-07-15 19:54 UTCEG score recompute
  2. 2026-07-15 19:54 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 08:14 UTCEG score recompute
  5. 2026-07-15 08:14 UTCGHSA enrichment
  6. 2026-07-15 02:00 UTCEPSS rescore
  7. 2026-07-14 20:35 UTCEG score recompute
  8. 2026-07-14 20:35 UTCGHSA enrichment
  9. 2026-07-14 08:52 UTCEG score recompute
  10. 2026-07-14 08:52 UTCGHSA enrichment
  11. 2026-07-13 22:31 UTCEPSS rescore
  12. 2026-07-13 21:10 UTCEG score recompute
  13. 2026-07-13 21:10 UTCGHSA enrichment
  14. 2026-07-13 09:30 UTCEG score recompute
  15. 2026-07-13 09:30 UTCGHSA enrichment
  16. 2026-07-13 06:13 UTCEPSS rescore
  17. 2026-07-13 06:13 UTCEPSS rescore
  18. 2026-07-12 21:50 UTCEG score recompute
  19. 2026-07-12 21:50 UTCGHSA enrichment
  20. 2026-07-12 10:09 UTCEG score recompute
  21. 2026-07-12 10:09 UTCGHSA enrichment
  22. 2026-07-12 05:46 UTCEPSS rescore
  23. 2026-07-11 22:29 UTCEG score recompute
  24. 2026-07-11 22:29 UTCGHSA enrichment
  25. 2026-07-11 10:49 UTCEG score recompute
Show 17 more
  1. 2026-07-11 10:49 UTCGHSA enrichment
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-11 08:27 UTCEPSS rescore
  4. 2026-07-10 23:09 UTCEG score recompute
  5. 2026-07-10 23:09 UTCGHSA enrichment
  6. 2026-07-10 11:29 UTCEG score recompute
  7. 2026-07-10 11:29 UTCGHSA enrichment
  8. 2026-07-09 23:49 UTCEG score recompute
  9. 2026-07-09 23:48 UTCGHSA enrichment
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-09 19:10 UTCEPSS rescore
  12. 2026-07-09 12:09 UTCEG score recompute
  13. 2026-07-09 12:09 UTCGHSA enrichment
  14. 2026-07-09 00:28 UTCEG score recompute
  15. 2026-07-09 00:28 UTCGHSA enrichment
  16. 2026-07-08 12:48 UTCEG score recompute
  17. 2026-07-08 12:47 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-6820?
CVE-2026-6820 is a high vulnerability published on July 8, 2026. The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'email' parameter in all versions up to, and including, 1.8.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to…
When was CVE-2026-6820 disclosed?
CVE-2026-6820 was first published in the National Vulnerability Database on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6820 actively exploited?
CVE-2026-6820 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-6820?
CVE-2026-6820 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-6820?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6820, 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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