CVE-2021-47711

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2025-12-18. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

A SQL injection vulnerability in Kentico Xperience allows authenticated editors to inject malicious SQL queries via online marketing macro method parameters. This enables unauthorized database access and potential data manipulation by exploiting macro method input validation weaknesses.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

December 18, 2025

Last Modified

December 24, 2025

Advisory Details (2)

Auto-updated Jul 30, 2026
Patch available.
generic

Kentico Xperience <= 13.0.52 Online Marketing Macros SQL Injection | Advisories | VulnCheck

https://www.vulncheck.com/advisories/kentico-xperience-online-marketing-macros-sql-injection
generic Patch Available

Hotfixes

https://devnet.kentico.com/download/hotfixes

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 42× 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. 2026-08-01 04:13 UTCEPSS rescore
  2. 2026-07-30 16:25 UTCEPSS rescore
  3. 2026-07-30 01:28 UTCEPSS rescore
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  8. 2026-07-24 14:15 UTCEPSS rescore
  9. 2026-07-23 14:16 UTCEPSS rescore
  10. 2026-07-23 02:06 UTCEG score recompute
  11. 2026-07-22 22:53 UTCEG score recompute
  12. 2026-07-22 14:06 UTCEPSS rescore
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  25. 2026-07-13 22:27 UTCEPSS rescore
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  1. 2026-07-13 06:11 UTCEPSS rescore
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  3. 2026-07-12 05:44 UTCEPSS rescore
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  5. 2026-07-09 19:07 UTCEPSS rescore
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  7. 2026-07-08 15:12 UTCEPSS rescore
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  9. 2026-07-07 13:43 UTCEPSS rescore
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  18. 2026-07-01 15:04 UTCEPSS rescore
  19. 2026-06-30 23:20 UTCEPSS rescore
  20. 2026-06-29 14:04 UTCEPSS rescore
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  22. 2026-06-28 14:05 UTCEPSS rescore
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  25. 2026-06-27 03:07 UTCEPSS rescore
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  34. 2026-06-21 14:55 UTCEPSS rescore
  35. 2026-06-21 01:58 UTCEPSS rescore
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  37. 2026-06-19 19:24 UTCEPSS rescore
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  39. 2026-06-18 17:51 UTCEPSS rescore
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  41. 2026-06-17 17:51 UTCEPSS rescore
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  44. 2026-06-15 17:46 UTCEPSS rescore
  45. 2026-06-14 23:15 UTCEPSS rescore
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  47. 2026-06-13 22:58 UTCEPSS rescore
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  49. 2026-06-12 23:10 UTCEPSS rescore
  50. 2026-06-11 13:58 UTCEPSS rescore
  51. 2026-06-10 22:16 UTCEPSS rescore
  52. 2026-06-10 13:20 UTCEPSS rescore
  53. 2026-06-08 14:15 UTCEPSS rescore
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  56. 2026-06-07 15:23 UTCEPSS rescore
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  58. 2026-06-06 13:46 UTCEPSS rescore
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  60. 2026-06-05 22:45 UTCEPSS rescore
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  62. 2026-06-05 06:09 UTCEPSS rescore
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  64. 2026-06-04 13:11 UTCEPSS rescore
  65. 2026-06-04 13:10 UTCEPSS rescore
  66. 2026-06-02 20:11 UTCEPSS rescore
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  68. 2026-06-01 13:50 UTCEPSS rescore
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  70. 2026-05-31 22:29 UTCEPSS rescore
  71. 2026-05-31 00:15 UTCEPSS rescore
  72. 2026-05-31 00:15 UTCEPSS rescore
  73. 2026-05-29 17:16 UTCEG score recompute
  74. 2026-05-29 17:15 UTCGHSA enrichment
  75. 2026-05-29 13:42 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2021-47711?
CVE-2021-47711 is a high vulnerability published on December 18, 2025. A SQL injection vulnerability in Kentico Xperience allows authenticated editors to inject malicious SQL queries via online marketing macro method parameters. This enables unauthorized database access and potential data manipulation by exploiting macro method input validation weaknesses.
When was CVE-2021-47711 disclosed?
CVE-2021-47711 was first published in the National Vulnerability Database on December 18, 2025, with the most recent update on December 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-47711 actively exploited?
CVE-2021-47711 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 81.9% of all scored CVEs.
What is the CVSS score of CVE-2021-47711?
CVE-2021-47711 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2021-47711?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-47711, 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.

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