CVE-2026-77128

MEDIUMPre-NVD 6.36.3
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (41st 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
Trending — 3 sources updated this week
6.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.3Exploit: None knownExposed services: Not assessed

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

The CVE record's CNA (TYPO3 Association) lists TYPO3 Extension "Event management and registration" versions 9.0.0 up to but not including 9.0.3, 8.0.0 up to but not including 8.6.2, 7.0.0 up to but not including 7.9.3, 6.0.0 up to but not including 6.7.2 and 1 more range as affected. No release containing a fix is confirmed on record.

The extension fails to enforce enable-field restrictions on a repository query parameter. An unauthenticated remote user can pass a demand-override parameter to view hidden or time-restricted events, unless the disableOverrideDemand plugin setting is active. Exploitation of this issue requires only that disableOverrideDemand is not enabled.

CVSS v3
6.3
EG Score
6.3MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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)
Severity63% × 45%
The EG Score, 6.3 of 10.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (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: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.5%
EPSS %ILE
41st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (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 25, 2026

Last Modified

August 26, 2026

Advisory Details (1)

Auto-updated Aug 25, 2026
No fix on record yet.
Web page

TYPO3-EXT-SA-2026-023: Multiple vulnerabilities in extension "Event management and registration" (sf_event_mgt) - TYPO3 News

https://typo3.org/security/advisory/typo3-ext-sa-2026-023

Vendor Advisories for CVE-2026-77128(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 17× in last 7d / 78× 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 100 of 136 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. None are among the latest 100 rows. The 36 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  3. 2026-10-12 15:37 UTCEG score recompute
  4. 2026-10-11 19:23 UTCEG score recompute
  5. 2026-10-11 16:39 UTCEG score recompute
  6. 2026-10-11 13:58 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  9. 2026-10-10 12:19 UTCEG score recompute
  10. 2026-10-10 12:19 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  12. 2026-10-09 07:25 UTCEG score recompute
  13. 2026-10-09 07:25 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  14. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  15. 2026-10-08 06:52 UTCEG score recompute
  16. 2026-10-08 06:51 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  17. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  18. 2026-10-07 07:16 UTCEG score recompute
  19. 2026-10-07 07:16 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  20. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  21. 2026-10-06 07:43 UTCEG score recompute
  22. 2026-10-06 07:43 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  23. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-10-05 05:11 UTCEG score recompute
  25. 2026-10-05 05:11 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
Show 75 more
  1. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  2. 2026-10-04 05:40 UTCEG score recompute
  3. 2026-10-04 05:40 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  4. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  5. 2026-10-03 06:10 UTCEG score recompute
  6. 2026-10-03 06:10 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  7. 2026-10-02 06:29 UTCEG score recompute
  8. 2026-10-02 06:29 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  9. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-10-01 06:22 UTCEG score recompute
  11. 2026-10-01 06:22 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  12. 2026-09-30 06:52 UTCEG score recompute
  13. 2026-09-30 06:52 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  14. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  15. 2026-09-28 21:30 UTCEG score recompute
  16. 2026-09-28 21:30 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  17. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  18. 2026-09-27 21:39 UTCEG score recompute
  19. 2026-09-27 21:39 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  20. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  21. 2026-09-26 22:09 UTCEG score recompute
  22. 2026-09-26 22:08 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  23. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  25. 2026-09-24 19:28 UTCEG score recompute
  26. 2026-09-24 19:28 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  27. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  28. 2026-09-23 19:58 UTCEG score recompute
  29. 2026-09-23 19:58 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  30. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  31. 2026-09-22 19:39 UTCEG score recompute
  32. 2026-09-22 19:39 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  33. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  34. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  35. 2026-09-21 20:07 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  36. 2026-09-20 20:36 UTCEG score recompute
  37. 2026-09-20 20:36 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  38. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  39. 2026-09-19 21:05 UTCEG score recompute
  40. 2026-09-19 21:05 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  41. 2026-09-18 21:34 UTCEG score recompute
  42. 2026-09-18 21:34 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  43. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  44. 2026-09-17 21:09 UTCEG score recompute
  45. 2026-09-17 21:09 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  46. 2026-09-16 21:35 UTCEG score recompute
  47. 2026-09-16 21:34 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  48. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  49. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  50. 2026-09-15 21:57 UTCEG score recompute
  51. 2026-09-15 21:57 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  52. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  53. 2026-09-14 22:26 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  54. 2026-09-13 22:50 UTCEG score recompute
  55. 2026-09-13 22:50 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  56. 2026-09-12 23:20 UTCEG score recompute
  57. 2026-09-12 23:20 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  58. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  59. 2026-09-11 23:49 UTCEG score recompute
  60. 2026-09-11 23:49 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  61. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  62. 2026-09-11 00:18 UTCEG score recompute
  63. 2026-09-11 00:18 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  64. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  65. 2026-09-10 00:47 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  66. 2026-09-09 01:17 UTCEG score recompute
  67. 2026-09-09 01:17 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  68. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  69. 2026-09-07 15:18 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  70. 2026-09-06 14:52 UTCEG score recompute
  71. 2026-09-06 14:52 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  72. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  73. 2026-09-05 15:21 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm
  74. 2026-09-04 15:49 UTCEG score recompute
  75. 2026-09-04 15:49 UTCGHSA enrichmentGHSA-w95p-wfvw-xgjm

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-77128?
CVE-2026-77128 is a medium-severity vulnerability; its CVE record was published on August 25, 2026. The extension fails to enforce enable-field restrictions on a repository query parameter. An unauthenticated remote user can pass a demand-override parameter to view hidden or time-restricted events, unless the disableOverrideDemand plugin setting is active. Exploitation of this issue requires only…
When was CVE-2026-77128 made public?
CVE-2026-77128 was made public on August 25, 2026: that is the date its CVE record's CNA, TYPO3 Association, gives for when the vulnerability was made public. The CVE record itself was published on August 25, 2026. EchelonGraph's copy of the record carries a last-modified date of August 26, 2026; the record at its source may have been updated since.
Is CVE-2026-77128 actively exploited?
CVE-2026-77128 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (41st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-77128?
CVE-2026-77128 has a CVSS base score of 6.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-77128?
No fix for CVE-2026-77128 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (TYPO3 Association) lists TYPO3 Extension "Event management and registration" versions 9.0.0 up to but not including 9.0.3, 8.0.0 up to but not including 8.6.2, 7.0.0 up to but not including 7.9.3, 6.0.0 up to but not including 6.7.2 and 1 more range as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-77128 are linked in the Vendor Advisories panel on this page.

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