CVE-2026-63360

HIGHPre-NVD 7.47.4
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This high-severity CVE scores 7.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (38th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this weekElevated
7.4EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.4Exploit: No code on recordExposed services: Not assessed

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

LimeSurvey Community Edition 7.0.5+260623 contains an authenticated reflected Cross-Site Scripting vulnerability in the user activation confirmation endpoint. The action query parameter is copied into the response and inserted into a hidden input attribute without HTML attribute encoding.

This issue affects LimeSurvey: 7.0.5.

CVSS v3
7.4
EG Score
7.4HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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 (value × EchelonGraph’s weight)
Severity74% × 45%
The EG Score, 7.4 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.5%
EPSS %ILE
38th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 26, 2026

Last Modified

August 28, 2026

Advisory Details (2)

Auto-updated Aug 26, 2026
No fix on record yet.
Web page

GitHub - LimeSurvey/LimeSurvey: 🔥 LimeSurvey – A powerful, open-source survey platform. A free alternative to SurveyMonkey, Typeform, Qualtrics, and Google Forms, making it simple to create online surveys and forms with unmatched flexibility. · GitHub

https://github.com/LimeSurvey/LimeSurvey
Web page

LimeSurvey Community Edition 7.0.5 - Reflected XSS in user activation confirmation endpoint | Fluid Attacks

https://fluidattacks.com/advisories/raine

Vendor Advisories for CVE-2026-63360(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 20× in last 7d / 97× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 168 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 68 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  3. 2026-10-13 12:00 UTCEG score recompute
  4. 2026-10-13 12:00 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  5. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  6. 2026-10-12 15:49 UTCEG score recompute
  7. 2026-10-11 19:33 UTCEG score recompute
  8. 2026-10-11 16:48 UTCEG score recompute
  9. 2026-10-11 14:10 UTCEG score recompute
  10. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  11. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  12. 2026-10-10 06:03 UTCEG score recompute
  13. 2026-10-10 06:03 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  14. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  15. 2026-10-09 03:19 UTCEG score recompute
  16. 2026-10-09 03:18 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  17. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  18. 2026-10-08 01:44 UTCEG score recompute
  19. 2026-10-08 01:43 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  20. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  21. 2026-10-07 09:06 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  22. 2026-10-06 20:43 UTCEG score recompute
  23. 2026-10-06 20:43 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  24. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  25. 2026-10-06 07:35 UTCEG score recompute
Show 75 more
  1. 2026-10-06 07:35 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  2. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  3. 2026-10-05 17:20 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  4. 2026-10-05 05:02 UTCEG score recompute
  5. 2026-10-05 05:02 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  6. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  7. 2026-10-04 16:43 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  8. 2026-10-04 04:23 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  9. 2026-10-03 16:05 UTCEG score recompute
  10. 2026-10-03 16:05 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  11. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  12. 2026-10-02 21:31 UTCEG score recompute
  13. 2026-10-02 21:31 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  14. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  15. 2026-10-02 09:08 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  16. 2026-10-01 20:46 UTCEG score recompute
  17. 2026-10-01 20:46 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  19. 2026-10-01 08:16 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  20. 2026-09-30 19:57 UTCEG score recompute
  21. 2026-09-30 19:57 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  22. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  23. 2026-09-30 06:00 UTCEG score recompute
  24. 2026-09-30 06:00 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  25. 2026-09-29 12:25 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  26. 2026-09-28 21:46 UTCEG score recompute
  27. 2026-09-28 21:46 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  28. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  29. 2026-09-28 09:27 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  30. 2026-09-27 21:08 UTCEG score recompute
  31. 2026-09-27 21:08 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  32. 2026-09-27 08:49 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  33. 2026-09-26 20:30 UTCEG score recompute
  34. 2026-09-26 20:30 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  35. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  36. 2026-09-25 14:39 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  37. 2026-09-25 01:58 UTCEG score recompute
  38. 2026-09-25 01:58 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  39. 2026-09-24 13:38 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  40. 2026-09-24 01:18 UTCEG score recompute
  41. 2026-09-24 01:18 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  42. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  43. 2026-09-23 12:59 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  44. 2026-09-23 00:40 UTCEG score recompute
  45. 2026-09-23 00:40 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  46. 2026-09-22 12:21 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  47. 2026-09-22 00:02 UTCEG score recompute
  48. 2026-09-22 00:02 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  49. 2026-09-21 11:42 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  50. 2026-09-20 23:23 UTCEG score recompute
  51. 2026-09-20 23:23 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  52. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  53. 2026-09-20 10:46 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  54. 2026-09-19 22:26 UTCEG score recompute
  55. 2026-09-19 22:26 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  56. 2026-09-19 10:02 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  57. 2026-09-18 21:35 UTCEG score recompute
  58. 2026-09-18 21:35 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  59. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  60. 2026-09-18 09:16 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  61. 2026-09-17 20:57 UTCEG score recompute
  62. 2026-09-17 20:57 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  63. 2026-09-17 07:28 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  64. 2026-09-16 19:08 UTCEG score recompute
  65. 2026-09-16 19:08 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  66. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  67. 2026-09-16 06:49 UTCEG score recompute
  68. 2026-09-16 06:49 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  69. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  70. 2026-09-15 18:29 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  71. 2026-09-15 05:37 UTCEG score recompute
  72. 2026-09-15 05:37 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  73. 2026-09-14 16:20 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH
  74. 2026-09-14 04:01 UTCEG score recompute
  75. 2026-09-14 04:01 UTCGHSA enrichmentGHSA-65x5-6vw6-2f55 · GitHub severity HIGH

Frequently asked(5)

What is CVE-2026-63360?
CVE-2026-63360 is a high-severity vulnerability; its CVE record was published on August 26, 2026. LimeSurvey Community Edition 7.0.5+260623 contains an authenticated reflected Cross-Site Scripting vulnerability in the user activation confirmation endpoint. The action query parameter is copied into the response and inserted into a hidden input attribute without HTML attribute encoding. This…
When was CVE-2026-63360 made public?
CVE-2026-63360 was made public on August 26, 2026: that is the date its CVE record's CNA, Fluid Attacks, gives for when the vulnerability was made public. The CVE record itself was published on August 26, 2026. EchelonGraph's copy of the record carries a last-modified date of August 28, 2026; the record at its source may have been updated since.
Is CVE-2026-63360 actively exploited?
CVE-2026-63360 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-63360?
CVE-2026-63360 has a CVSS base score of 7.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-63360?
No fix for CVE-2026-63360 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-63360 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-63360

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