CVE-2026-12271

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-07-13. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: Elevated riskExposed: 0

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

The Tutor LMS WordPress plugin before 3.9.13 does not verify ownership of the targeted quiz attempt before writing to it, allowing authenticated users with subscriber-level access and above to modify and force-complete other students' quiz attempts, overwriting their recorded marks and pass/fail result.

CVSS v3
5.4
EG Score
5.4(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
Severity54% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

July 13, 2026

Last Modified

July 13, 2026

Advisory Details (1)

Auto-updated Jul 13, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Tutor LMS < 3.9.13 – Subscriber+ Arbitrary Quiz Attempt Modification via IDOR | CVE 2026-12271 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/ca99ea35-4bf8-4dc8-a817-79fb9fa1c5bd/

Vendor Advisories for CVE-2026-12271(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 16× in last 7d / 78× 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 115 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-12271?
CVE-2026-12271 is a medium vulnerability published on July 13, 2026. The Tutor LMS WordPress plugin before 3.9.13 does not verify ownership of the targeted quiz attempt before writing to it, allowing authenticated users with subscriber-level access and above to modify and force-complete other students' quiz attempts, overwriting their recorded marks and pass/fail…
When was CVE-2026-12271 disclosed?
CVE-2026-12271 was first published in the National Vulnerability Database on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12271 actively exploited?
CVE-2026-12271 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 79.2% of all scored CVEs.
What is the CVSS score of CVE-2026-12271?
CVE-2026-12271 has a CVSS v3.1 base score of 5.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-12271?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12271, 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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