CVE-2026-45481

HIGHNVD 5.47.3▲
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-09. NVD baseline CVSS 5.4; sources differ by 1.9.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.4Exploit: None knownExposed: 0

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

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

CVSS v3
5.4
EG Score
7.3(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity73% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
51%
KEV
Not listed

Published

June 9, 2026

Last Modified

August 25, 2026

Advisory Details (1)

Auto-updated Jun 11, 2026
Patch available. Sources: microsoft.
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45481

Vendor Advisories for CVE-2026-45481(2)

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 9× in last 7d / 54× 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 359 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-45481?
CVE-2026-45481 is a high vulnerability published on June 9, 2026. Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
When was CVE-2026-45481 disclosed?
CVE-2026-45481 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45481 actively exploited?
CVE-2026-45481 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 49.2% of all scored CVEs.
What is the CVSS score of CVE-2026-45481?
CVE-2026-45481 has a CVSS v3 base score of 5.4 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.3.
How do I remediate CVE-2026-45481?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45481, 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-2026-45481

Explore →

Is Your Infrastructure Affected by CVE-2026-45481?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs