CVE-2026-40545

MEDIUMNVD 5.15.1
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 67% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this week
5.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.1Exploit: NoneExposed: 0

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

SOPlanning is vulnerable to Reflected XSS via the taches parameter. An attacker can craft a malicious URL which, when opened by authenticated victim, results in arbitrary JavaScript execution in the victim’s browser.

This issue affects SOPlanning version 1.55 and below.

CVSS v3
5.1
EG Score
5.1(medium)
EPSS
32.6%
KEV
Not listed

Published

June 1, 2026

Last Modified

June 1, 2026

Advisory Details (2)

Auto-updated Jun 13, 2026
No patch confirmed yet.
generic

Online Planning tool - SO Planning Shared Planning Software

https://www.soplanning.org/en/
generic

Vulnerabilities in SOPlanning software | CERT Polska

https://cert.pl/en/posts/2026/06/CVE-2026-40543

Vendor Advisories for CVE-2026-40545(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 13× in last 7d / 65× 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 117 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-40545?
CVE-2026-40545 is a medium vulnerability published on June 1, 2026. SOPlanning is vulnerable to Reflected XSS via the taches parameter. An attacker can craft a malicious URL which, when opened by authenticated victim, results in arbitrary JavaScript execution in the victim’s browser. This issue affects SOPlanning version 1.55 and below.
When was CVE-2026-40545 disclosed?
CVE-2026-40545 was first published in the National Vulnerability Database on June 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-40545 actively exploited?
CVE-2026-40545 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-40545?
CVE-2026-40545 has a CVSS v3 base score of 5.1 (NVD).
How do I remediate CVE-2026-40545?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40545, 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-2026-40545

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