CVE-2022-21647

HIGHNVD 7.77.9▲
EchelonGraph scoreHIGH confidence

Score elevated to 7.9 because EPSS predicts 38% probability of exploitation within the next 30 days (98th percentile of EPSS-scored CVEs). NVD baseline CVSS 7.7 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction (continuous uplift above 30%)
Sources: epss, nvd
Elevated
7.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 38%CVSS: 7.7Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

CodeIgniter is an open source PHP full-stack web framework. Deserialization of Untrusted Data was found in the old() function in CodeIgniter4. Remote attackers may inject auto-loadable arbitrary objects with this vulnerability, and possibly execute existing PHP code on the server. We are aware of a working exploit, which can lead to SQL injection. Users are advised to upgrade to v4.1.6 or later. Users unable to upgrade as advised to not use the old() function and form_helper nor RedirectResponse::withInput() and redirect()->withInput().

CVSS v3
7.7
EG Score
7.9HIGHhigh confidence
EG Risk
52
EG Risk 52/100CISA SSVC

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
Severity79% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
38%
EPSS %ILE
98th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

January 4, 2022

Last Modified

November 21, 2024

References (4)

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
codeigniter4/framework4.0.0 ... v4.1.5 (24 versions)
  • every version up to 4.1.6: fixed in 4.1.6
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 19× 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 145 total refreshes for this CVE.

  1. 2026-10-09 20:04 UTCEPSS rescore
  2. 2026-10-08 16:40 UTCEPSS rescore
  3. 2026-10-07 23:45 UTCEPSS rescore
  4. 2026-10-06 15:14 UTCEPSS rescore
  5. 2026-10-04 23:19 UTCEPSS rescore
  6. 2026-10-03 14:23 UTCEPSS rescore
  7. 2026-10-03 14:22 UTCEPSS rescore
  8. 2026-09-30 15:48 UTCEG score recompute
  9. 2026-09-30 15:00 UTCEPSS rescore
  10. 2026-09-27 13:41 UTCEPSS rescore
  11. 2026-09-26 00:22 UTCEPSS rescore
  12. 2026-09-25 08:36 UTCOSV refresh
  13. 2026-09-24 14:00 UTCEPSS rescore
  14. 2026-09-23 13:45 UTCEPSS rescore
  15. 2026-09-17 19:23 UTCEPSS rescore
  16. 2026-09-16 14:05 UTCEPSS rescore
  17. 2026-09-12 14:57 UTCEPSS rescore
  18. 2026-09-11 14:49 UTCEPSS rescore
  19. 2026-09-11 09:33 UTCEPSS rescore
  20. 2026-09-06 13:45 UTCEPSS rescore
  21. 2026-09-06 00:25 UTCOSV refresh
  22. 2026-09-05 15:25 UTCEPSS rescore
  23. 2026-09-04 13:57 UTCEPSS rescore
  24. 2026-09-04 05:04 UTCEPSS rescore
  25. 2026-09-02 14:09 UTCEPSS rescore
Show 75 more
  1. 2026-09-01 13:51 UTCEPSS rescore
  2. 2026-08-30 19:14 UTCEPSS rescore
  3. 2026-08-30 01:19 UTCEPSS rescore
  4. 2026-08-28 21:38 UTCEPSS rescore
  5. 2026-08-26 14:43 UTCEPSS rescore
  6. 2026-08-25 13:46 UTCEPSS rescore
  7. 2026-08-25 13:46 UTCEPSS rescore
  8. 2026-08-24 14:13 UTCEPSS rescore
  9. 2026-08-21 23:46 UTCEPSS rescore
  10. 2026-08-20 22:52 UTCEPSS rescore
  11. 2026-08-19 17:01 UTCEPSS rescore
  12. 2026-08-19 11:29 UTCOSV refresh
  13. 2026-08-18 13:45 UTCEPSS rescore
  14. 2026-08-16 14:53 UTCEPSS rescore
  15. 2026-08-16 02:11 UTCEPSS rescore
  16. 2026-08-15 01:27 UTCEPSS rescore
  17. 2026-08-13 21:57 UTCEPSS rescore
  18. 2026-08-12 13:48 UTCEPSS rescore
  19. 2026-08-08 16:34 UTCEPSS rescore
  20. 2026-08-07 16:24 UTCEPSS rescore
  21. 2026-08-06 13:44 UTCEPSS rescore
  22. 2026-08-05 19:15 UTCEPSS rescore
  23. 2026-08-04 07:27 UTCOSV refresh
  24. 2026-08-03 10:33 UTCEPSS rescore
  25. 2026-08-01 04:13 UTCEPSS rescore
  26. 2026-07-30 16:25 UTCEPSS rescore
  27. 2026-07-30 01:28 UTCEPSS rescore
  28. 2026-07-28 15:33 UTCEPSS rescore
  29. 2026-07-26 14:52 UTCEPSS rescore
  30. 2026-07-26 14:52 UTCEPSS rescore
  31. 2026-07-25 14:15 UTCEPSS rescore
  32. 2026-07-24 14:15 UTCEPSS rescore
  33. 2026-07-23 02:08 UTCEG score recompute▲ 0.20
  34. 2026-07-22 22:54 UTCEG score recompute
  35. 2026-07-22 14:06 UTCEPSS rescore
  36. 2026-07-22 14:06 UTCEPSS rescore
  37. 2026-07-21 15:22 UTCEPSS rescore
  38. 2026-07-21 15:22 UTCEPSS rescore
  39. 2026-07-20 17:05 UTCEPSS rescore
  40. 2026-07-19 02:27 UTCEPSS rescore
  41. 2026-07-18 10:02 UTCEPSS rescore
  42. 2026-07-18 10:02 UTCEPSS rescore
  43. 2026-07-18 04:29 UTCOSV refresh
  44. 2026-07-16 17:00 UTCEPSS rescore
  45. 2026-07-16 17:00 UTCEPSS rescore
  46. 2026-07-15 16:56 UTCEPSS rescore
  47. 2026-07-15 16:56 UTCEPSS rescore
  48. 2026-07-15 01:58 UTCEPSS rescore
  49. 2026-07-15 01:58 UTCEPSS rescore
  50. 2026-07-13 22:27 UTCEPSS rescore
  51. 2026-07-13 06:11 UTCEPSS rescore
  52. 2026-07-13 06:11 UTCEPSS rescore
  53. 2026-07-12 05:44 UTCEPSS rescore
  54. 2026-07-11 08:25 UTCEPSS rescore
  55. 2026-07-09 19:07 UTCEPSS rescore
  56. 2026-07-06 16:25 UTCEPSS rescore
  57. 2026-07-06 16:25 UTCEPSS rescore
  58. 2026-07-05 02:28 UTCEPSS rescore
  59. 2026-07-01 15:04 UTCEPSS rescore
  60. 2026-06-30 23:20 UTCEPSS rescore
  61. 2026-06-30 23:20 UTCEPSS rescore
  62. 2026-06-30 00:04 UTCOSV refresh
  63. 2026-06-29 14:04 UTCEPSS rescore
  64. 2026-06-29 14:04 UTCEPSS rescore
  65. 2026-06-28 04:54 UTCEPSS rescore
  66. 2026-06-28 04:54 UTCEPSS rescore
  67. 2026-06-27 03:07 UTCEPSS rescore
  68. 2026-06-25 13:48 UTCEPSS rescore
  69. 2026-06-24 14:03 UTCEPSS rescore
  70. 2026-06-24 14:03 UTCEPSS rescore
  71. 2026-06-23 21:31 UTCEPSS rescore
  72. 2026-06-23 21:31 UTCEPSS rescore
  73. 2026-06-22 14:24 UTCEPSS rescore
  74. 2026-06-21 01:58 UTCEPSS rescore
  75. 2026-06-21 01:58 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2022-21647?
CVE-2022-21647 is a high vulnerability published on January 4, 2022. CodeIgniter is an open source PHP full-stack web framework. Deserialization of Untrusted Data was found in the old() function in CodeIgniter4. Remote attackers may inject auto-loadable arbitrary objects with this vulnerability, and possibly execute existing PHP code on the server. We are aware of a…
When was CVE-2022-21647 disclosed?
CVE-2022-21647 was first published on January 4, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-21647 actively exploited?
CVE-2022-21647 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 38% probability of exploitation in the next 30 days (98th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-21647?
CVE-2022-21647 has a CVSS v3 base score of 7.7 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.9 (HIGH).
How do I remediate CVE-2022-21647?
A fix for CVE-2022-21647 is available: update to the fixed version the vendor names in its advisory.

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