CVE-2026-44783

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 96% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.4Exploit: NoneExposed: 0

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

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, a flaw in how replies to whisper posts are handled allows authenticated users outside the groups configured in whispers_allowed_groups to post into a topic's staff-only whisper channel. The injected content is visible to whisperers (typically staff) alongside legitimate whispers. Only sites that have whispers enabled are affected. This issue has been patched in versions 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1.

CVSS v3
5.4
EG Score
5.4(medium)
EPSS
4.4%
KEV
Not listed

Published

June 12, 2026

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Jun 15, 2026
Patch available. Sources: github.
github Patch Available

Replying to a whisper lets non-whisperers create staff-only whisper posts · Advisory · discourse/discourse · GitHub

https://github.com/discourse/discourse/security/advisories/GHSA-98ch-mgfj-wqpw

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 66× 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 16:57 UTCEPSS rescore
  2. 2026-07-15 16:14 UTCEG score recompute
  3. 2026-07-15 02:00 UTCEPSS rescore
  4. 2026-07-14 17:23 UTCEG score recompute
  5. 2026-07-13 22:30 UTCEPSS rescore
  6. 2026-07-13 18:53 UTCEG score recompute
  7. 2026-07-13 06:13 UTCEPSS rescore
  8. 2026-07-12 17:38 UTCEG score recompute
  9. 2026-07-12 05:46 UTCEPSS rescore
  10. 2026-07-11 18:41 UTCEG score recompute
  11. 2026-07-11 08:27 UTCEPSS rescore
  12. 2026-07-10 20:11 UTCEG score recompute
  13. 2026-07-09 21:37 UTCEG score recompute
  14. 2026-07-09 19:10 UTCEPSS rescore
  15. 2026-07-08 22:01 UTCEG score recompute
  16. 2026-07-08 15:16 UTCEPSS rescore
  17. 2026-07-07 23:31 UTCEG score recompute
  18. 2026-07-07 13:46 UTCEPSS rescore
  19. 2026-07-07 00:59 UTCEG score recompute
  20. 2026-07-06 16:27 UTCEPSS rescore
  21. 2026-07-06 02:23 UTCEPSS rescore
  22. 2026-07-05 13:06 UTCEG score recompute
  23. 2026-07-05 02:30 UTCEPSS rescore
  24. 2026-07-04 14:33 UTCEG score recompute
  25. 2026-07-04 06:31 UTCEPSS rescore
Show 49 more
  1. 2026-07-03 16:03 UTCEG score recompute
  2. 2026-07-02 17:32 UTCEG score recompute
  3. 2026-07-01 19:00 UTCEG score recompute
  4. 2026-07-01 15:07 UTCEPSS rescore
  5. 2026-06-30 23:22 UTCEPSS rescore
  6. 2026-06-30 20:30 UTCEG score recompute
  7. 2026-06-29 21:54 UTCEG score recompute
  8. 2026-06-29 14:06 UTCEPSS rescore
  9. 2026-06-29 14:06 UTCEPSS rescore
  10. 2026-06-28 23:24 UTCEG score recompute
  11. 2026-06-28 14:07 UTCEPSS rescore
  12. 2026-06-28 04:56 UTCEPSS rescore
  13. 2026-06-28 04:56 UTCEPSS rescore
  14. 2026-06-28 00:54 UTCEG score recompute
  15. 2026-06-27 03:08 UTCEPSS rescore
  16. 2026-06-27 02:23 UTCEG score recompute
  17. 2026-06-26 03:49 UTCEG score recompute
  18. 2026-06-25 13:49 UTCEPSS rescore
  19. 2026-06-25 13:49 UTCEPSS rescore
  20. 2026-06-25 05:18 UTCEG score recompute
  21. 2026-06-24 14:05 UTCEPSS rescore
  22. 2026-06-24 06:47 UTCEG score recompute
  23. 2026-06-23 21:33 UTCEPSS rescore
  24. 2026-06-23 06:48 UTCEG score recompute
  25. 2026-06-22 14:25 UTCEPSS rescore
  26. 2026-06-22 14:25 UTCEPSS rescore
  27. 2026-06-22 08:17 UTCEG score recompute
  28. 2026-06-21 14:56 UTCEPSS rescore
  29. 2026-06-21 14:56 UTCEPSS rescore
  30. 2026-06-21 09:13 UTCEG score recompute
  31. 2026-06-21 01:59 UTCEPSS rescore
  32. 2026-06-20 10:36 UTCEG score recompute
  33. 2026-06-19 19:25 UTCEPSS rescore
  34. 2026-06-19 12:05 UTCEG score recompute
  35. 2026-06-18 17:52 UTCEPSS rescore
  36. 2026-06-18 17:52 UTCEPSS rescore
  37. 2026-06-18 13:24 UTCEG score recompute
  38. 2026-06-17 17:53 UTCEPSS rescore
  39. 2026-06-17 14:49 UTCEG score recompute
  40. 2026-06-16 17:52 UTCEPSS rescore
  41. 2026-06-16 16:19 UTCEG score recompute
  42. 2026-06-15 17:49 UTCEPSS rescore
  43. 2026-06-15 17:49 UTCEG score recompute
  44. 2026-06-14 19:15 UTCEG score recompute
  45. 2026-06-13 23:00 UTCEPSS rescore
  46. 2026-06-13 20:44 UTCEG score recompute
  47. 2026-06-12 23:12 UTCEPSS rescore
  48. 2026-06-12 22:14 UTCEG score recompute
  49. 2026-06-12 22:13 UTCNVD updatefirst tracked

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Frequently asked(5)

What is CVE-2026-44783?
CVE-2026-44783 is a medium vulnerability published on June 12, 2026. Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, a flaw in how replies to whisper posts are handled allows authenticated users outside the groups configured in…
When was CVE-2026-44783 disclosed?
CVE-2026-44783 was first published in the National Vulnerability Database on June 12, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44783 actively exploited?
CVE-2026-44783 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-44783?
CVE-2026-44783 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-44783?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44783, 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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