CVE-2017-20257

HIGHPre-NVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-06-19. a secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: None knownExposed: 0

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

Joomla! Component Quiz Deluxe 3.7.4 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL commands through the ajaxaction.flag_question task. Attackers can inject malicious SQL code via the stu_quiz_id or flag_quest parameters to manipulate database queries and extract sensitive information.

CVSS v3
8.2
EG Score
8.2(medium)
EG Risk
42(Track)
EG Risk 42/100SSVC: 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
Severity82% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

June 19, 2026

Last Modified

August 19, 2026

Advisory Details (4)

Auto-updated Jun 19, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Joomla! Component Quiz Deluxe 3.7.4 SQL Injection | Advisories | VulnCheck

https://www.vulncheck.com/advisories/joomla-component-quiz-deluxe-sql-injection
generic🟡 PoC Available

Joomla! Component Quiz Deluxe 3.7.4 - SQL Injection - PHP webapps Exploit

https://www.exploit-db.com/exploits/42589
generic

Quiz Deluxe - Joomla! Extension Directory

https://extensions.joomla.org/extensions/extension/living/education-a-culture/quiz-deluxe/
generic

Joomla Extensions, components and plugins by JoomPlace

http://joomplace.com/

Vendor Advisories for CVE-2017-20257(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 4× in last 7d / 54× 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 214 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2017-20257?
CVE-2017-20257 is a high vulnerability published on June 19, 2026. Joomla! Component Quiz Deluxe 3.7.4 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL commands through the ajaxaction.flagquestion task. Attackers can inject malicious SQL code via the stuquizid or flagquest parameters to manipulate database…
When was CVE-2017-20257 disclosed?
CVE-2017-20257 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-20257 actively exploited?
CVE-2017-20257 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 59.2% of all scored CVEs.
What is the CVSS score of CVE-2017-20257?
CVE-2017-20257 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2017-20257?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-20257, 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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