CVE-2026-42658

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-15. the CNA's CVSS baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:patchstack, epss, ghsa
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

Unauthenticated Cross Site Scripting (XSS) in Classified Listing <= 5.3.8 versions.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

June 15, 2026

Last Modified

June 16, 2026

Advisory Details (1)

Auto-updated Jun 21, 2026
No patch confirmed yet.
generic

Cross Site Scripting (XSS) in WordPress Classified Listing Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/classified-listing/vulnerability/wordpress-classified-listing-plugin-5-3-8-cross-site-scripting-xss-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-42658(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 8× 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.

Showing the most recent 100 of 229 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-42658?
CVE-2026-42658 is a high vulnerability published on June 15, 2026. Unauthenticated Cross Site Scripting (XSS) in Classified Listing <= 5.3.8 versions.
When was CVE-2026-42658 disclosed?
CVE-2026-42658 was first published in the National Vulnerability Database on June 15, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42658 actively exploited?
CVE-2026-42658 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 92.8% of all scored CVEs.
What is the CVSS score of CVE-2026-42658?
CVE-2026-42658 has a CVSS v4.0 base score of 7.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-42658?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42658, 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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