CVE-2026-53673

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-10. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

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

BuddyPress 14.4.0 contains an insecure direct object reference vulnerability in the messages REST API that allows authenticated attackers to access arbitrary private message threads by supplying a user_id parameter in the request. Attackers can pass another user's identifier to the get_item_permissions_check method, which validates the supplied user_id instead of the logged-in user and is reused by the update and delete handlers, to read, reply to, or delete any user's private messages.

CVSS v3
8.1
EG Score
8.1(high)
EPSS
21.2%
KEV
Not listed

Published

June 10, 2026

Last Modified

June 10, 2026

Advisory Details (3)

Auto-updated Jun 10, 2026
No patch confirmed yet.
generic

BuddyPress 14.4.0 Private Message IDOR via REST API user_id Parameter | Advisories | VulnCheck

https://www.vulncheck.com/advisories/buddypress-private-message-idor-via-rest-api-user-id-parameter
generic

BuddyPress – WordPress plugin | WordPress.org

https://wordpress.org/plugins/buddypress/
generic

BuddyPress.org

https://buddypress.org/

Vendor Advisories for CVE-2026-53673(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 34× in last 7d / 147× 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 147 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53673?
CVE-2026-53673 is a high vulnerability published on June 10, 2026. BuddyPress 14.4.0 contains an insecure direct object reference vulnerability in the messages REST API that allows authenticated attackers to access arbitrary private message threads by supplying a userid parameter in the request. Attackers can pass another user's identifier to the…
When was CVE-2026-53673 disclosed?
CVE-2026-53673 was first published in the National Vulnerability Database on June 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53673 actively exploited?
CVE-2026-53673 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53673?
CVE-2026-53673 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-53673?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53673, 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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