CVE-2026-77028

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 84% 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
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

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

Joomla Extension - yootheme.com - Reflected XSS and open redirect via the submission redirect parameter in Zoo < 4.1.66

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

August 21, 2026

Last Modified

August 26, 2026

Advisory Details (1)

Auto-updated Aug 21, 2026
No patch confirmed yet.
generic

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Vendor Advisories for CVE-2026-77028(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 76× 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. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 02:20 UTCEG score recompute
  3. 2026-09-20 02:20 UTCGHSA enrichment
  4. 2026-09-19 00:08 UTCEG score recompute
  5. 2026-09-19 00:07 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-17 21:55 UTCEG score recompute
  8. 2026-09-17 21:55 UTCGHSA enrichment
  9. 2026-09-16 19:42 UTCEG score recompute
  10. 2026-09-16 19:42 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-15 15:16 UTCEG score recompute
  14. 2026-09-15 15:16 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 13:03 UTCEG score recompute
  17. 2026-09-14 13:03 UTCGHSA enrichment
  18. 2026-09-13 10:51 UTCEG score recompute
  19. 2026-09-13 10:51 UTCGHSA enrichment
  20. 2026-09-12 15:02 UTCEPSS rescore
  21. 2026-09-12 08:38 UTCEG score recompute
  22. 2026-09-12 08:38 UTCGHSA enrichment
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 06:25 UTCEG score recompute
  25. 2026-09-11 06:25 UTCGHSA enrichment
Show 57 more
  1. 2026-09-10 09:35 UTCEPSS rescore
  2. 2026-09-10 04:12 UTCGHSA enrichment
  3. 2026-09-09 01:48 UTCEG score recompute
  4. 2026-09-09 01:48 UTCGHSA enrichment
  5. 2026-09-08 22:01 UTCEPSS rescore
  6. 2026-09-07 21:11 UTCEG score recompute
  7. 2026-09-07 21:11 UTCGHSA enrichment
  8. 2026-09-06 18:59 UTCEG score recompute
  9. 2026-09-06 18:59 UTCGHSA enrichment
  10. 2026-09-06 13:48 UTCEPSS rescore
  11. 2026-09-05 16:46 UTCEG score recompute
  12. 2026-09-05 16:46 UTCGHSA enrichment
  13. 2026-09-04 14:33 UTCEG score recompute
  14. 2026-09-04 14:33 UTCGHSA enrichment
  15. 2026-09-04 05:07 UTCEPSS rescore
  16. 2026-09-03 12:19 UTCEG score recompute
  17. 2026-09-03 12:19 UTCGHSA enrichment
  18. 2026-09-02 14:12 UTCEPSS rescore
  19. 2026-09-02 10:05 UTCEG score recompute
  20. 2026-09-02 10:05 UTCGHSA enrichment
  21. 2026-09-01 13:54 UTCEPSS rescore
  22. 2026-09-01 07:50 UTCEG score recompute
  23. 2026-09-01 07:50 UTCGHSA enrichment
  24. 2026-09-01 04:40 UTCEPSS rescore
  25. 2026-09-01 04:40 UTCEPSS rescore
  26. 2026-08-31 05:33 UTCEG score recompute
  27. 2026-08-31 05:33 UTCGHSA enrichment
  28. 2026-08-30 19:18 UTCEPSS rescore
  29. 2026-08-30 19:17 UTCEPSS rescore
  30. 2026-08-30 03:20 UTCEG score recompute
  31. 2026-08-30 03:20 UTCGHSA enrichment
  32. 2026-08-30 01:22 UTCEPSS rescore
  33. 2026-08-29 01:08 UTCEG score recompute
  34. 2026-08-29 01:07 UTCGHSA enrichment
  35. 2026-08-28 21:42 UTCEPSS rescore
  36. 2026-08-27 19:09 UTCEG score recompute
  37. 2026-08-27 19:08 UTCGHSA enrichment
  38. 2026-08-27 14:25 UTCEPSS rescore
  39. 2026-08-26 16:47 UTCEG score recompute
  40. 2026-08-26 16:47 UTCGHSA enrichment
  41. 2026-08-26 14:47 UTCEPSS rescore
  42. 2026-08-26 04:23 UTCEG score recompute
  43. 2026-08-26 04:23 UTCGHSA enrichment
  44. 2026-08-25 13:49 UTCEPSS rescore
  45. 2026-08-25 02:11 UTCEG score recompute
  46. 2026-08-25 02:11 UTCGHSA enrichment
  47. 2026-08-24 14:18 UTCEPSS rescore
  48. 2026-08-23 23:59 UTCEG score recompute
  49. 2026-08-23 23:59 UTCGHSA enrichment
  50. 2026-08-23 00:19 UTCEPSS rescore
  51. 2026-08-22 21:47 UTCGHSA enrichment
  52. 2026-08-21 19:34 UTCGHSA enrichment
  53. 2026-08-21 16:20 UTCEG score recompute
  54. 2026-08-21 16:20 UTCGHSA enrichment
  55. 2026-08-21 13:20 UTCEG score recompute
  56. 2026-08-21 12:30 UTCEG score recompute
  57. 2026-08-21 12:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-77028?
CVE-2026-77028 is a medium vulnerability published on August 21, 2026. Joomla Extension - yootheme.com - Reflected XSS and open redirect via the submission redirect parameter in Zoo < 4.1.66
When was CVE-2026-77028 disclosed?
CVE-2026-77028 was first published in the National Vulnerability Database on August 21, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77028 actively exploited?
CVE-2026-77028 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 84.1% of all scored CVEs.
What is the CVSS score of CVE-2026-77028?
CVE-2026-77028 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-77028?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77028, 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-2026-77028

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