CVE-2026-77035

MEDIUMPre-NVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 86% 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
Trending — 3 sources updated this week
5.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.1Exploit: None knownExposed: 0

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

Joomla Extension - joomlaeventmanager.net - Cross-user event and venue takeover through forged form fields in Joomla Event Manager < 5.0.1 - A registered user with edit-own rights (the eventowner=1 setting or core.edit.own) can POST another user's record id together with their own id as created_by and take over that record.

CVSS v3
5.1
EG Score
5.1(medium)
EG Risk
23(Track)
EG Risk 23/100SSVC: 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
Severity51% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 27, 2026
No patch confirmed yet.
generic

JEM - Joomla Event Manager

https://www.joomlaeventmanager.net/

Vendor Advisories for CVE-2026-77035(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 18× in last 7d / 75× 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. 2026-09-21 03:57 UTCEG score recompute
  2. 2026-09-21 03:57 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 03:46 UTCEG score recompute
  5. 2026-09-20 03:46 UTCGHSA enrichment
  6. 2026-09-19 03:34 UTCEG score recompute
  7. 2026-09-19 03:34 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 03:23 UTCEG score recompute
  10. 2026-09-18 03:23 UTCGHSA enrichment
  11. 2026-09-17 03:12 UTCEG score recompute
  12. 2026-09-17 03:12 UTCGHSA enrichment
  13. 2026-09-16 14:08 UTCEPSS rescore
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-16 02:08 UTCEG score recompute
  16. 2026-09-16 02:08 UTCGHSA enrichment
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-15 01:57 UTCGHSA enrichment
  19. 2026-09-14 01:46 UTCEG score recompute
  20. 2026-09-14 01:46 UTCGHSA enrichment
  21. 2026-09-13 01:32 UTCEG score recompute
  22. 2026-09-13 01:32 UTCGHSA enrichment
  23. 2026-09-12 15:02 UTCEPSS rescore
  24. 2026-09-12 01:21 UTCEG score recompute
  25. 2026-09-12 01:21 UTCGHSA enrichment
Show 50 more
  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-11 01:09 UTCEG score recompute
  3. 2026-09-11 01:09 UTCGHSA enrichment
  4. 2026-09-10 09:35 UTCEPSS rescore
  5. 2026-09-10 00:55 UTCGHSA enrichment
  6. 2026-09-09 00:44 UTCEG score recompute
  7. 2026-09-09 00:44 UTCGHSA enrichment
  8. 2026-09-08 22:01 UTCEPSS rescore
  9. 2026-09-07 21:37 UTCEG score recompute
  10. 2026-09-07 21:37 UTCGHSA enrichment
  11. 2026-09-06 21:26 UTCEG score recompute
  12. 2026-09-06 21:26 UTCGHSA enrichment
  13. 2026-09-06 13:48 UTCEPSS rescore
  14. 2026-09-05 21:13 UTCEG score recompute
  15. 2026-09-05 21:13 UTCGHSA enrichment
  16. 2026-09-04 21:02 UTCEG score recompute
  17. 2026-09-04 21:01 UTCGHSA enrichment
  18. 2026-09-04 05:07 UTCEPSS rescore
  19. 2026-09-03 20:43 UTCGHSA enrichment
  20. 2026-09-02 20:31 UTCEG score recompute
  21. 2026-09-02 20:31 UTCGHSA enrichment
  22. 2026-09-02 14:12 UTCEPSS rescore
  23. 2026-09-01 17:25 UTCEG score recompute
  24. 2026-09-01 17:25 UTCGHSA enrichment
  25. 2026-09-01 13:54 UTCEPSS rescore
  26. 2026-09-01 04:40 UTCEPSS rescore
  27. 2026-09-01 04:40 UTCEPSS rescore
  28. 2026-08-31 17:14 UTCEG score recompute
  29. 2026-08-31 17:14 UTCGHSA enrichment
  30. 2026-08-30 19:18 UTCEPSS rescore
  31. 2026-08-30 19:17 UTCEPSS rescore
  32. 2026-08-30 16:44 UTCEG score recompute
  33. 2026-08-30 16:44 UTCGHSA enrichment
  34. 2026-08-30 01:22 UTCEPSS rescore
  35. 2026-08-29 16:33 UTCEG score recompute
  36. 2026-08-29 16:32 UTCGHSA enrichment
  37. 2026-08-28 21:42 UTCEPSS rescore
  38. 2026-08-28 16:14 UTCEG score recompute
  39. 2026-08-28 16:14 UTCGHSA enrichment
  40. 2026-08-28 11:28 UTCEG score recompute
  41. 2026-08-28 11:27 UTCGHSA enrichment
  42. 2026-08-27 17:28 UTCEG score recompute
  43. 2026-08-27 17:28 UTCGHSA enrichment
  44. 2026-08-27 17:03 UTCEG score recompute
  45. 2026-08-27 17:03 UTCGHSA enrichment
  46. 2026-08-27 14:25 UTCEPSS rescore
  47. 2026-08-27 06:34 UTCEG score recompute
  48. 2026-08-27 06:34 UTCGHSA enrichment
  49. 2026-08-27 06:13 UTCEG score recompute
  50. 2026-08-27 06:11 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-77035?
CVE-2026-77035 is a medium vulnerability published on August 27, 2026. Joomla Extension - joomlaeventmanager.net - Cross-user event and venue takeover through forged form fields in Joomla Event Manager < 5.0.1 - A registered user with edit-own rights (the eventowner=1 setting or core.edit.own) can POST another user's record id together with their own id as created_by…
When was CVE-2026-77035 disclosed?
CVE-2026-77035 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77035 actively exploited?
CVE-2026-77035 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 86.0% of all scored CVEs.
What is the CVSS score of CVE-2026-77035?
CVE-2026-77035 has a CVSS v3 base score of 5.1 (NVD).
How do I remediate CVE-2026-77035?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77035, 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

Explore the affected products and dependency analysis for CVE-2026-77035

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