CVE-2026-63107

HIGHPre-NVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

Score 7.7 from GitHub Security Advisory published 2026-07-20. the CNA's CVSS baseline 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this weekElevated
7.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.7Exploit: Elevated riskExposed: 0

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

LimeSurvey through 6.17.10 and 7.0.4 contains a server-side request forgery vulnerability in the REST API survey template endpoint that allows authenticated users to cause the server to issue arbitrary HTTP requests by supplying a manipulated Host header. Attackers can exploit the unsanitized use of the HTTP Host header in the getTemplateData() function to reach internal network services, cloud metadata endpoints, and extract sensitive credentials such as IAM tokens from instance metadata services.

CVSS v3
7.7
EG Score
7.7(medium)
EG Risk
51(Track)
EG Risk 51/100SSVC: 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
Severity77% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

July 20, 2026

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Jul 20, 2026
No patch confirmed yet.
generic

LimeSurvey SSRF via REST API Survey Template Host Header | Advisories | VulnCheck

https://www.vulncheck.com/advisories/limesurvey-ssrf-via-rest-api-survey-template-host-header
generic

oss/limesurvey.md at main · geo-chen/oss · GitHub

https://github.com/geo-chen/oss/blob/main/limesurvey.md

Vendor Advisories for CVE-2026-63107(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 17× in last 7d / 86× 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 170 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-63107?
CVE-2026-63107 is a high vulnerability published on July 20, 2026. LimeSurvey through 6.17.10 and 7.0.4 contains a server-side request forgery vulnerability in the REST API survey template endpoint that allows authenticated users to cause the server to issue arbitrary HTTP requests by supplying a manipulated Host header. Attackers can exploit the unsanitized use…
When was CVE-2026-63107 disclosed?
CVE-2026-63107 was first published in the National Vulnerability Database on July 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-2026-63107 actively exploited?
CVE-2026-63107 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 71.4% of all scored CVEs.
What is the CVSS score of CVE-2026-63107?
CVE-2026-63107 has a CVSS v4.0 base score of 7.7 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-63107?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63107, 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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