CVE-2026-9626

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

Score 6.4 from GitHub Security Advisory published 2026-07-03. 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
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.4Exploit: None knownExposed: 0

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

The JSON API User plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter of the post_comment API endpoint in versions up to, and including, 4.1.0 This is due to insufficient input sanitization in the post_comment() function, which passes the attacker-controlled comment_content value directly to wp_insert_comment() without applying any HTML sanitization, and additionally allows the caller to set comment_approved=1 to self-approve the comment and bypass moderation. This makes it possible for authenticated attackers, with subscriber-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)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity64% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

July 3, 2026

Last Modified

July 6, 2026

References (6)

Vendor Advisories for CVE-2026-9626(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 / 59× 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 154 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9626?
CVE-2026-9626 is a medium vulnerability published on July 3, 2026. The JSON API User plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter of the postcomment API endpoint in versions up to, and including, 4.1.0 This is due to insufficient input sanitization in the postcomment() function, which passes the attacker-controlled…
When was CVE-2026-9626 disclosed?
CVE-2026-9626 was first published in the National Vulnerability Database on July 3, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9626 actively exploited?
CVE-2026-9626 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 69.2% of all scored CVEs.
What is the CVSS score of CVE-2026-9626?
CVE-2026-9626 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-9626?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9626, 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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