CVE-2026-4080

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

Score 6.4 from GitHub Security Advisory published 2026-06-02. a secondary CVSS source baseline 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.4Exploit: NoneExposed: 0

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

The Easy Cart plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'add_to_cart' shortcode in all versions up to and including 1.8. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, the ectp_add_to_cart() function uses sanitize_text_field() on shortcode attributes like 'itemid', 'product_name', 'product_desc', 'product_qty', and 'price' before inserting them into double-quoted HTML attributes. While sanitize_text_field() strips HTML tags, it does not escape double quote characters, allowing an attacker to break out of the HTML attribute context and inject arbitrary event handlers. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS v3
6.4
EG Score
6.4(medium)
EPSS
15.4%
KEV
Not listed

Published

June 2, 2026

Last Modified

June 2, 2026

References (15)

Vendor Advisories for CVE-2026-4080(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 12× in last 7d / 72× 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 121 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-4080?
CVE-2026-4080 is a medium vulnerability published on June 2, 2026. The Easy Cart plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'addtocart' shortcode in all versions up to and including 1.8. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, the ectpaddtocart() function…
When was CVE-2026-4080 disclosed?
CVE-2026-4080 was first published in the National Vulnerability Database on June 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4080 actively exploited?
CVE-2026-4080 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-4080?
CVE-2026-4080 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-4080?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4080, 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.

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