CVE-2026-77807

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-11. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

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

The AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 11.0.4 via the user[name] Parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires "Embed images" option in AcyMailing configuration being enabled.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
59%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 11, 2026

References (2)

Vendor Advisories for CVE-2026-77807(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 27× in last 7d / 61× 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. 2026-09-25 07:52 UTCGHSA enrichment
  2. 2026-09-24 19:59 UTCEG score recompute
  3. 2026-09-24 19:59 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 08:06 UTCGHSA enrichment
  6. 2026-09-23 20:13 UTCEG score recompute
  7. 2026-09-23 20:13 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 08:20 UTCGHSA enrichment
  10. 2026-09-22 20:27 UTCEG score recompute
  11. 2026-09-22 20:27 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 08:33 UTCEG score recompute
  14. 2026-09-22 08:33 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 20:40 UTCGHSA enrichment
  17. 2026-09-21 08:47 UTCGHSA enrichment
  18. 2026-09-20 20:52 UTCEG score recompute
  19. 2026-09-20 20:52 UTCGHSA enrichment
  20. 2026-09-20 20:16 UTCEPSS rescore
  21. 2026-09-20 08:59 UTCGHSA enrichment
  22. 2026-09-19 21:06 UTCEG score recompute
  23. 2026-09-19 21:06 UTCGHSA enrichment
  24. 2026-09-19 09:13 UTCGHSA enrichment
  25. 2026-09-18 21:19 UTCEG score recompute
Show 36 more
  1. 2026-09-18 21:19 UTCGHSA enrichment
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 08:52 UTCGHSA enrichment
  4. 2026-09-17 20:59 UTCEG score recompute
  5. 2026-09-17 20:59 UTCGHSA enrichment
  6. 2026-09-17 09:06 UTCGHSA enrichment
  7. 2026-09-16 21:13 UTCEG score recompute
  8. 2026-09-16 21:13 UTCGHSA enrichment
  9. 2026-09-16 14:08 UTCEPSS rescore
  10. 2026-09-16 08:51 UTCEG score recompute
  11. 2026-09-16 08:51 UTCGHSA enrichment
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-15 20:49 UTCGHSA enrichment
  14. 2026-09-15 08:33 UTCEG score recompute
  15. 2026-09-15 08:33 UTCGHSA enrichment
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-14 20:40 UTCGHSA enrichment
  19. 2026-09-14 08:47 UTCGHSA enrichment
  20. 2026-09-13 20:54 UTCEG score recompute
  21. 2026-09-13 20:54 UTCGHSA enrichment
  22. 2026-09-13 09:00 UTCGHSA enrichment
  23. 2026-09-12 21:08 UTCEG score recompute
  24. 2026-09-12 21:08 UTCGHSA enrichment
  25. 2026-09-12 09:15 UTCGHSA enrichment
  26. 2026-09-11 21:22 UTCEG score recompute
  27. 2026-09-11 21:22 UTCGHSA enrichment
  28. 2026-09-11 20:34 UTCEG score recompute
  29. 2026-09-11 20:34 UTCGHSA enrichment
  30. 2026-09-11 14:53 UTCEPSS rescore
  31. 2026-09-11 13:32 UTCGHSA enrichment
  32. 2026-09-11 12:18 UTCEG score recompute
  33. 2026-09-11 12:18 UTCGHSA enrichment
  34. 2026-09-11 00:25 UTCEG score recompute
  35. 2026-09-10 23:35 UTCEG score recompute
  36. 2026-09-10 23:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-77807?
CVE-2026-77807 is a high vulnerability published on September 10, 2026. The AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 11.0.4 via the user[name] Parameter. This makes it possible for unauthenticated attackers to read the…
When was CVE-2026-77807 disclosed?
CVE-2026-77807 was first published in the National Vulnerability Database on September 10, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77807 actively exploited?
CVE-2026-77807 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 41.2% of all scored CVEs.
What is the CVSS score of CVE-2026-77807?
CVE-2026-77807 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-77807?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77807, 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

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