CVE-2026-72723

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (43rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
5.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 5.3Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, SiteSerializer.anonymous_default_navigation_menu_tags serializes tags from SiteSetting.default_navigation_menu_tags without applying DiscourseTagging.filter_visible for the anonymous viewer. An unauthenticated user can retrieve restricted tag names and descriptions through /site.json when those tags are limited by inaccessible categories, category tag groups, or tag-group permissions. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100

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 (value × EchelonGraph’s weight)
Severity53% × 45%
The EG Score, 5.3 of 10.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
43rd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 10, 2026

Last Modified

September 8, 2026

Advisory Details (9)

Auto-updated Aug 10, 2026
Fix named in the CVE record. Sources: github_commit, github_pr, github.
GitHub advisoryMentions a patch (unverified)

Anonymous sidebar serialization exposes descriptions of category-restricted tags · Advisory · discourse/discourse · GitHub

https://github.com/discourse/discourse/security/advisories/GHSA-4p6q-h74v-5j7p
GitHub pull request

Security fixes for release/2026.6

Fix merged in discourse/discourse PR #42094 on 2026-07-28 — awaiting tagged release

https://github.com/discourse/discourse/pull/42094
GitHub pull request

Security fixes for release/2026.5

Fix merged in discourse/discourse PR #42093 on 2026-07-28 — awaiting tagged release

https://github.com/discourse/discourse/pull/42093
GitHub pull request

Security fixes for release/2026.1

Fix merged in discourse/discourse PR #42092 on 2026-07-28 — awaiting tagged release

https://github.com/discourse/discourse/pull/42092
GitHub pull request

Security fixes for main

Fix merged in discourse/discourse PR #42091 on 2026-07-28 — awaiting tagged release

https://github.com/discourse/discourse/pull/42091
GitHub commit

commit da84c677213c (discourse/discourse)

Fix landed in discourse/discourse commit da84c677213c — awaiting tagged release

https://github.com/discourse/discourse/commit/da84c677213cac3b024e753f180f45472b89efde
GitHub commit

commit 900f51c14791 (discourse/discourse)

Fix landed in discourse/discourse commit 900f51c14791 — awaiting tagged release

https://github.com/discourse/discourse/commit/900f51c147913f667e64484c2f2dd48c723314ac
GitHub commit

commit 03444ddb74d5 (discourse/discourse)

Fix landed in discourse/discourse commit 03444ddb74d5 — awaiting tagged release

https://github.com/discourse/discourse/commit/03444ddb74d535dda557350f4c5800a6ec2669d7
GitHub commit

commit 0248e9ca82d0 (discourse/discourse)

Fix landed in discourse/discourse commit 0248e9ca82d0 — awaiting tagged release

https://github.com/discourse/discourse/commit/0248e9ca82d0493037a9ca04d73904ccfad795f9

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 44× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 96 of 104 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 8 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  2. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  4. 2026-10-12 15:41 UTCEG score recompute
  5. 2026-10-11 19:27 UTCEG score recompute
  6. 2026-10-11 16:42 UTCEG score recompute
  7. 2026-10-11 14:02 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-10-06 18:21 UTCEG score recompute
  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  16. 2026-10-05 07:47 UTCEG score recompute
  17. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  18. 2026-10-04 04:26 UTCEG score recompute
  19. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  20. 2026-10-02 09:19 UTCEG score recompute
  21. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-09-30 22:36 UTCEG score recompute
  23. 2026-09-29 05:22 UTCEG score recompute
  24. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  25. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
Show 71 more
  1. 2026-09-27 12:45 UTCEG score recompute
  2. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-09-25 04:01 UTCEG score recompute
  4. 2026-09-24 01:09 UTCEG score recompute
  5. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  6. 2026-09-23 00:03 UTCEG score recompute
  7. 2026-09-21 22:55 UTCEG score recompute
  8. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  9. 2026-09-20 21:12 UTCEG score recompute
  10. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  11. 2026-09-19 19:58 UTCEG score recompute
  12. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  13. 2026-09-18 17:18 UTCEG score recompute
  14. 2026-09-17 14:54 UTCEG score recompute
  15. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  16. 2026-09-16 11:04 UTCEG score recompute
  17. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  18. 2026-09-15 07:38 UTCEG score recompute
  19. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  20. 2026-09-14 06:30 UTCEG score recompute
  21. 2026-09-13 05:23 UTCEG score recompute
  22. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  23. 2026-09-12 04:16 UTCEG score recompute
  24. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  25. 2026-09-11 03:09 UTCEG score recompute
  26. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  27. 2026-09-10 02:01 UTCEG score recompute
  28. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  29. 2026-09-07 17:17 UTCEG score recompute
  30. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  31. 2026-09-06 05:51 UTCEG score recompute
  32. 2026-09-05 04:45 UTCEG score recompute
  33. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  34. 2026-09-03 02:31 UTCEG score recompute
  35. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  36. 2026-09-01 23:18 UTCEG score recompute
  37. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  38. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  39. 2026-08-31 22:11 UTCEG score recompute
  40. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  41. 2026-08-30 11:06 UTCEG score recompute
  42. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  43. 2026-08-29 09:58 UTCEG score recompute
  44. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  45. 2026-08-27 19:42 UTCEG score recompute
  46. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  47. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  48. 2026-08-26 14:17 UTCEG score recompute
  49. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  50. 2026-08-25 13:09 UTCEG score recompute
  51. 2026-08-24 12:03 UTCEG score recompute
  52. 2026-08-23 10:56 UTCEG score recompute
  53. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  54. 2026-08-22 09:50 UTCEG score recompute
  55. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  56. 2026-08-21 08:43 UTCEG score recompute
  57. 2026-08-20 22:56 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  58. 2026-08-20 07:36 UTCEG score recompute
  59. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  60. 2026-08-19 06:29 UTCEG score recompute
  61. 2026-08-18 13:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  62. 2026-08-18 05:23 UTCEG score recompute
  63. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  64. 2026-08-17 04:12 UTCEG score recompute
  65. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  66. 2026-08-16 03:05 UTCEG score recompute
  67. 2026-08-16 02:15 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  68. 2026-08-15 01:58 UTCEG score recompute
  69. 2026-08-15 01:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  70. 2026-08-14 00:51 UTCEG score recompute
  71. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 31st percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-72723?
CVE-2026-72723 is a medium-severity vulnerability; its CVE record was published on August 10, 2026. Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, SiteSerializer.anonymousdefaultnavigationmenutags serializes tags from SiteSetting.defaultnavigationmenutags without applying DiscourseTagging.filtervisible for the anonymous viewer. An…
When was the CVE record for CVE-2026-72723 published?
The CVE record for CVE-2026-72723 was published on August 10, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 8, 2026; the record at its source may have been updated since.
Is CVE-2026-72723 actively exploited?
CVE-2026-72723 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72723?
CVE-2026-72723 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72723?
The CVE record for CVE-2026-72723 names the fix: "This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0."

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