CVE-2026-34417

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-06-10. a secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.1Exploit: NoneExposed: 0

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

OSCAL-GUI contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in a victim's browser by injecting malicious content through the project request parameter in oscal-forms.php. The parameter value is URL-decoded and assigned to the project_id variable without sanitization in oscal-functions.php, and when the supplied project ID is not found, the unsanitized value is concatenated into an error message via the Messages() function and reflected into the HTML response body without encoding.

CVSS v3
6.1
EG Score
6.1(high)
EPSS
6.5%
KEV
Not listed

Published

June 9, 2026

Last Modified

June 10, 2026

Advisory Details (2)

Auto-updated Jun 16, 2026
No patch confirmed yet.
generic

OSCAL-GUI Reflected XSS via project parameter in oscal-forms.php | Advisories | VulnCheck

https://www.vulncheck.com/advisories/oscal-gui-reflected-xss-via-project-parameter-in-oscal-forms-php
generic

Vulnerability disclosure - Cross-site scripting in OSCAL GUI · GitHub

https://gist.github.com/cyberinforepo/5a8d369a005826b6b42bfeed9607c2dd

Vendor Advisories for CVE-2026-34417(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 19× in last 7d / 89× 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.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-34417?
CVE-2026-34417 is a medium vulnerability published on June 9, 2026. OSCAL-GUI contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in a victim's browser by injecting malicious content through the project request parameter in oscal-forms.php. The parameter value is URL-decoded and assigned to…
When was CVE-2026-34417 disclosed?
CVE-2026-34417 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on June 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34417 actively exploited?
CVE-2026-34417 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-34417?
CVE-2026-34417 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-34417?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34417, 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

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