CVE-2026-35009

MEDIUMPre-NVD 4.64.6—
EchelonGraph scoreMEDIUM confidence

Score 4.6 from GitHub Security Advisory published 2026-05-20. the CNA's CVSS baseline 4.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
4.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.6Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in add_note.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the ticket_id GET parameter directly into a hidden input field VALUE attribute. Attackers can craft a malicious URL containing a JavaScript payload in the ticket_id parameter that executes in the victim's browser when the URL is visited.

CVSS v3
4.6
EG Score
4.6MEDIUMmedium confidence
EG Risk
21
EG Risk 21/100

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
Severity46% × 45%
Exploitation0% × 40%
Automatability0% × 15%
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

Published

May 20, 2026

Last Modified

July 28, 2026

Advisory Details (3)

Auto-updated Jun 15, 2026
Patch available. Sources: github_commit, github_release.
generic

Open ISES Tickets < 3.44.2 Reflected XSS via add_note.php ticket_id Parameter | Advisories | VulnCheck

https://www.vulncheck.com/advisories/open-ises-tickets-reflected-xss-via-add-note-php-ticket-id-parameter
github_release Patch Available

v3.44.2 — Critical Security Update

Patch available: openises/tickets v3.44.2

https://github.com/openises/tickets/releases/tag/v3.44.2
github_commit Patch Available

commit ecfeb406a016 (openises/tickets)

Patch available: openises/tickets v3.44.2 (contains commit ecfeb406a016)

https://github.com/openises/tickets/commit/ecfeb406a016766cae81c749e14b5145a9f2dbff

Vendor Advisories for CVE-2026-35009(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 6× in last 7d / 26× 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 219 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-35009?
CVE-2026-35009 is a medium vulnerability published on May 20, 2026. Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in addnote.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the ticketid GET parameter directly into a hidden input field VALUE attribute. Attackers…
When was CVE-2026-35009 disclosed?
CVE-2026-35009 was first published on May 20, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-35009 actively exploited?
CVE-2026-35009 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-35009?
CVE-2026-35009 has a CVSS base score of 4.6 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-35009?
A fix for CVE-2026-35009 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-35009 are linked in the Vendor Advisories panel on this page.

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