CVE-2026-4259

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-22. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0

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

The ultimate-woocommerce-auction-pro WordPress plugin through 2.4.5 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

CVSS v3
7.1
EG Score
7.1(high)
EPSS
4.2%
KEV
Not listed

Published

June 22, 2026

Last Modified

June 22, 2026

Advisory Details (1)

Auto-updated Jun 22, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Ultimate WooCommerce Auction Pro <= 2.4.5 – Reflected XSS via uwa_manage_auctions | CVE 2026-4259 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/a98d234b-11e8-4a07-8593-982d656a4fd3/

Vendor Advisories for CVE-2026-4259(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 30× 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.

  1. 2026-07-06 22:39 UTCEG score recompute
  2. 2026-07-06 22:39 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 09:29 UTCEG score recompute
  5. 2026-07-06 09:29 UTCGHSA enrichment
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 19:55 UTCEG score recompute
  8. 2026-07-05 19:55 UTCGHSA enrichment
  9. 2026-07-05 06:44 UTCEG score recompute
  10. 2026-07-05 06:44 UTCGHSA enrichment
  11. 2026-07-05 02:30 UTCEPSS rescore
  12. 2026-07-04 17:28 UTCEG score recompute
  13. 2026-07-04 17:28 UTCGHSA enrichment
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-04 04:18 UTCEG score recompute
  16. 2026-07-04 04:17 UTCGHSA enrichment
  17. 2026-07-03 14:29 UTCEG score recompute
  18. 2026-07-03 14:29 UTCGHSA enrichment
  19. 2026-07-03 01:19 UTCEG score recompute
  20. 2026-07-03 01:19 UTCGHSA enrichment
  21. 2026-07-02 12:09 UTCEG score recompute
  22. 2026-07-02 12:09 UTCGHSA enrichment
  23. 2026-07-01 22:59 UTCEG score recompute
  24. 2026-07-01 22:59 UTCGHSA enrichment
  25. 2026-07-01 15:07 UTCEPSS rescore
Show 36 more
  1. 2026-07-01 09:50 UTCEG score recompute
  2. 2026-07-01 09:50 UTCGHSA enrichment
  3. 2026-06-30 23:22 UTCEPSS rescore
  4. 2026-06-30 20:40 UTCEG score recompute
  5. 2026-06-30 20:40 UTCGHSA enrichment
  6. 2026-06-30 07:25 UTCEG score recompute
  7. 2026-06-30 07:25 UTCGHSA enrichment
  8. 2026-06-29 18:15 UTCEG score recompute
  9. 2026-06-29 18:15 UTCGHSA enrichment
  10. 2026-06-29 05:03 UTCEG score recompute
  11. 2026-06-29 05:03 UTCGHSA enrichment
  12. 2026-06-28 15:49 UTCEG score recompute
  13. 2026-06-28 15:49 UTCGHSA enrichment
  14. 2026-06-28 14:07 UTCEPSS rescore
  15. 2026-06-28 04:56 UTCEPSS rescore
  16. 2026-06-28 04:56 UTCEPSS rescore
  17. 2026-06-28 02:39 UTCEG score recompute
  18. 2026-06-28 02:39 UTCGHSA enrichment
  19. 2026-06-27 13:29 UTCEG score recompute
  20. 2026-06-27 13:29 UTCGHSA enrichment
  21. 2026-06-27 03:08 UTCEPSS rescore
  22. 2026-06-27 00:19 UTCEG score recompute
  23. 2026-06-27 00:18 UTCGHSA enrichment
  24. 2026-06-26 11:09 UTCEG score recompute
  25. 2026-06-26 11:09 UTCGHSA enrichment
  26. 2026-06-25 18:41 UTCEG score recompute
  27. 2026-06-25 18:41 UTCGHSA enrichment
  28. 2026-06-25 13:49 UTCEPSS rescore
  29. 2026-06-25 05:31 UTCEG score recompute▲ 7.10
  30. 2026-06-25 05:31 UTCGHSA enrichment
  31. 2026-06-24 14:05 UTCEPSS rescore
  32. 2026-06-23 21:33 UTCEPSS rescore
  33. 2026-06-23 21:33 UTCEPSS rescore
  34. 2026-06-22 19:39 UTCNVD updateCVSS v3 → 7.1 · severity → HIGH
  35. 2026-06-22 10:04 UTCEG score recompute
  36. 2026-06-22 10:03 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-4259?
CVE-2026-4259 is a high vulnerability published on June 22, 2026. The ultimate-woocommerce-auction-pro WordPress plugin through 2.4.5 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin
When was CVE-2026-4259 disclosed?
CVE-2026-4259 was first published in the National Vulnerability Database on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4259 actively exploited?
CVE-2026-4259 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-4259?
CVE-2026-4259 has a CVSS v3.1 base score of 7.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-4259?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4259, 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-2026-4259

Explore →

Is Your Infrastructure Affected by CVE-2026-4259?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs