CVE-2018-15811

CRITICALNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.5 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 3 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 74%CVSS: 7.5Exploit: cisa kev · ssvc active · Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

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

DNN (aka DotNetNuke) 9.2 through 9.2.1 uses a weak encryption algorithm to protect input parameters.

CVSS v3
7.5
EG Score
9.0(high)
EG Risk
96(Attend)
EG Risk 96/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
74%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

July 3, 2019

Last Modified

November 7, 2025

Advisory Details (3)

Auto-updated Jun 6, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-15811
generic

Releases · dnnsoftware/Dnn.Platform · GitHub

https://github.com/dnnsoftware/Dnn.Platform/releases
generic

Packet Storm

http://packetstormsecurity.com/files/157080/DotNetNuke-Cookie-Deserialization-Remote-Code-Execution.html

Affected Packages

(1 across 1 ecosystem)
NuGet(1)
PackageVulnerable rangeFixed inDependents
DotNetNuke.Core9.2.0.366, 9.2.1.5339.2.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× 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.

Showing the most recent 100 of 187 total refreshes for this CVE.

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

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-48336✓ verified
    First seen Apr 16, 2020

    DotNetNuke - Cookie Deserialization Remote Code Execution (Metasploit)

    Open source ↗
  • Nucleihttp/cves/2018/CVE-2018-15811.yaml
    First seen Jan 1, 2018

    DotNetNuke 9.2 - 9.2.1 - Weak Encryption & Cookie Deserialization

    Open source ↗
  • Metasploitexploit/windows/http/dnn_cookie_deserialization_rce✓ verified
    First seen Jul 20, 2017

    DotNetNuke Cookie Deserialization Remote Code Excecution

    Open source ↗

Frequently asked(6)

What is CVE-2018-15811?
CVE-2018-15811 is a critical vulnerability published on July 3, 2019. DNN (aka DotNetNuke) 9.2 through 9.2.1 uses a weak encryption algorithm to protect input parameters.
When was CVE-2018-15811 disclosed?
CVE-2018-15811 was first published in the National Vulnerability Database on July 3, 2019, with the most recent update on November 7, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-15811 actively exploited?
Yes. CISA added CVE-2018-15811 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting DotNetNuke (DNN) DotNetNuke (DNN). KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2018-15811?
CVE-2018-15811 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2018-15811?
CVE-2018-15811 affects DotNetNuke (DNN) DotNetNuke (DNN). The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2018-15811?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-15811, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-15811

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