CVE-2023-22518

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-11-07), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 3 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 100%CVSS: 9.8Exploit: cisa kev · ssvc active · kev ransomware · Metasploit · 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.

All versions of Confluence Data Center and Server are affected by this unexploited vulnerability. This Improper Authorization vulnerability allows an unauthenticated attacker to reset Confluence and create a Confluence instance administrator account. Using this account, an attacker can then perform all administrative actions that are available to Confluence instance administrator leading to - but not limited to - full loss of confidentiality, integrity and availability. 

Atlassian Cloud sites are not affected by this vulnerability. If your Confluence site is accessed via an atlassian.net domain, it is hosted by Atlassian and is not vulnerable to this issue.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Attend)
EG Risk 99/100SSVC: 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
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
100%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

October 31, 2023

Last Modified

October 24, 2025

Advisory Details (4)

Auto-updated Jun 1, 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-2023-22518
generic

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https://jira.atlassian.com/browse/CONFSERVER-93142
generic

CVE-2023-22518 - Improper Authorization Vulnerability In Confluence Data Center and Server | Atlassian Support | Atlassian Documentation

https://confluence.atlassian.com/pages/viewpage.action?pageId=1311473907
generic

Packet Storm

http://packetstormsecurity.com/files/176264/Atlassian-Confluence-Improper-Authorization-Code-Execution.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 32× in last 7d / 193× 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 391 total refreshes for this CVE.

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

Publicly available exploits

(6 references)

Working exploit code is in the public domain (1 Metasploit module) (4 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoC0x0d3ad/CVE-2023-22518
    First seen Nov 9, 2023

    Exploit CVE-2023-22518

    Open source ↗
  • GitHub PoCRevoltSecurities/CVE-2023-22518
    First seen Nov 5, 2023

    An Exploitation tool to exploit the confluence server that are vulnerable to CVE-2023-22518 Improper Authorization

    Open source ↗
  • GitHub PoCdavidfortytwo/CVE-2023-22518
    First seen Nov 2, 2023

    Checker for CVE-2023-22518 vulnerability on Confluence

    Open source ↗
  • GitHub PoCForceFledgling/CVE-2023-22518
    First seen Oct 31, 2023

    Improper Authorization Vulnerability in Confluence Data Center and Server

    Open source ↗
  • Metasploitexploit/multi/http/atlassian_confluence_unauth_backup✓ verified
    First seen Oct 31, 2023

    Atlassian Confluence Unauth JSON setup-restore Improper Authorization leading to RCE (CVE-2023-22518)

    Open source ↗
  • Nucleihttp/cves/2023/CVE-2023-22518.yaml
    First seen Jan 1, 2023

    Atlassian Confluence Server - Improper Authorization

    Open source ↗

Frequently asked(6)

What is CVE-2023-22518?
CVE-2023-22518 is a critical vulnerability published on October 31, 2023. All versions of Confluence Data Center and Server are affected by this unexploited vulnerability. This Improper Authorization vulnerability allows an unauthenticated attacker to reset Confluence and create a Confluence instance administrator account. Using this account, an attacker can then perform…
When was CVE-2023-22518 disclosed?
CVE-2023-22518 was first published in the National Vulnerability Database on October 31, 2023, with the most recent update on October 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-22518 actively exploited?
Yes. CISA added CVE-2023-22518 to the Known Exploited Vulnerabilities catalog on November 7, 2023, affecting Atlassian Confluence Data Center and Server. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-22518?
CVE-2023-22518 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2023-22518?
CVE-2023-22518 affects Atlassian Confluence Data Center and Server. 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-2023-22518?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-22518, 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-2023-22518

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