CVE-2018-15811

HIGHNVD 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
7.5
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 74%CVSS: 7.5Exploit: NoneExposed: 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)
EPSS
99.4%
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 48× in last 7d / 214× 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 311 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2018-15811?
CVE-2018-15811 is a high 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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